The number of different languages spoken is about__________. 查看材料

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• Examine the description of the EMPLOYEES table: EMP_ID NUMBER(4) NOT NULL LAST_NAME VARCHAR2(30) NOT NULL FIRST_NAME VARCHAR2(30) DEPT_ID NUMBER(2) Which statement produces the number of different departments that have employees with last name Smith? （）

  A . SELECT COUNT (*) FROM employees WHERE last _name='smith'; B . SELECT COUNT (dept_id) FROM employees WHERE last _name='smith'; C . SELECT DISTINCT (COUNT (dept_id) FROM employees WHERE last _name='smith'; D . SELECT COUNT (DISTINCT dept_id) FROM employees WHERE last _name='smith'; E . SELECT UNIQE (dept_id) FROM employees WHERE last _name='smith'

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• Examine the description of the EMPLOYEES table: EMP_ID NUMBER(4) NOT NULL LAST_NAME VARCHAR2(30) NOT NULL FIRST_NAME VARCHAR2(30) DEPT_ID NUMBER(2) Which statement produces the number of different departments that have employees with last name Smith?（）

  A . SELECT COUNT(*) FROM employees WHERE last_name='Smith'; B . SELECT COUNT(dept_id) FROM employees WHERE last_name='Smith'; C . SELECT DISTINCT(COUNT(dept_id)) FROM employees WHERE last_name='Smith'; D . SELECT COUNT(DISTINCT dept_id) FROM employees WHERE last_name='Smith'; E . SELECT UNIQUE(dept_id) FROM employees WHERE last_name='Smith'

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• Examine the description of the EMPLOYEES table: https://assets.asklib.com/images/image2/2018080110341576486.jpg Which statement produces the number of different departments that have employees with last name Smith?（）

  A . SELECT COUNT(*) FROM employees WHERE last_name='Smith'; B . SELECT COUNT(dept_id) FROM employees WHERE last_name='Smith'; C . SELECT DISTINCT(COUNT(dept_id)) FROM employees WHERE last_name='Smith'; D . SELECT COUNT(DISTINCT dept_id) FROM employees WHERE last_name='Smith'; E . SELECT UNIQUE(dept_id) FROM employees WHERE last_name='Smith'

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• The crank throws are displaced from （） to obtained the same number of degrees between the different crank throws.

  A . one another B . the other C . each other D . each other

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• In the article, the authors give different definitions of history from different perspectives.

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• The number of people invited ________ fifty, but a number of them ________ absent for different reasons.

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• What is the result of the conflict of different cltural values?

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• Which is one of the different types of the booth?

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• Body language can lead to misunderstanding since people of different cultures often have different forms of behavior for sending the same message or have different interpretations of the same body signal.

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• \the average man\=\the average number of the population\.( )

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• There have been changes in all sorts of different areas of British society.In recent years in the UK we have had a very large increase in the number of couples who get divorced

  After 1969 and the Divorce Law Reform. Act we had a very rapid increase in the number of divorces.The rate increased steadily and in recent years has increased much more rapidly.But there are also quite a lot of people who do actually get married.At present the marriage rate in the UK is about 70 per cent, which has gone down since the number of people who marry has gone down qui te a lot in the last 20 years, but more significantly in the last 10 years.Quite high proportions of people now live together without marrying, and, for example, 40 per cent of children born in the UK are born to couples who aren&39;t married or are born to lone parents.There are quite a large number of lone parent families, 90 per cent of these are headed by a woman rather than a man The average family size now in the UK is 1.8 children per couple, which Means that there’s been quite a decline in the birth rate in the UK along with other European countries. 21.What does the passage mainly discuss？() A.The declining divorce rate in the UK. B.Trends in marriage and divorce in the UK. C.The increasing divorce rate in the UK. 22.During the last ten years,（） A.the marriage rate has gone down more rapidly in the UK B.the marriage rate has gone up a lot in the UK C.40% of children were born to unwed couples in the UK 23.According to the passage, the cohabitation rate in the UK tends to ___ A.decline B.soar C.stay stable 24.According to the passage, which of the following statements is NOT true？ A.The highest divorce rate was around 1969. B.The marriage rate has gone down in recent years. C.The marriage rate is currently 70 percent. 25.The last paragraph tells us（） A.the birth rate in the UK is increasing at the moment B.the birth rate in other European countries keeps increasing C.the birth rate in the UK is decreasing rapidly now

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• What is the main reason of the reduction of the grizzly bears' number？

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• The caller got the number of Stephanie Grant.

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• （）refers to general cargo listed in a number of Bills of Lading each consisting of different commodities．

  <img src='https://img2.soutiyun.com/ask/uploadfile/2748001-2751000/9097f48840c3072daeedf417db594e0c.gif' />

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• Number of the flight:

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• The number of sales（）

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• A manufacture packages soap powder in containers of three different sizes. The amount of soap powder in a full large container could fill exactly 3 of the medium containers or exactly 5 of the small containers. If an equal number of small and large containers are to be filled with the amount of soap powder that would fill 90 medium containers, how many small containers will be filled？

  A．25 B．27 C．30 D．45 E．55

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• What is the total number of different 5-digit numbers that contain all of the digits 2,3, 4, 7 and 9 and in which none of the odd digits occur next to each other？

  A．12 B．10 C．8 D．6 E．1

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• Many science reports discuss medical studies that test the effect of a new drug. Usually, a large number of people is divided into two groups. Each group takes a different substance. But no one knows which group is getting which substance. One group takes the medicine being tested. Another group takes what we call an inactive substance. Medical researchers call this substance a "placebo." The word "placebo" is Latin for "I shall please." Placebo pills(宽心丸)usually are made of sugar.

  Using placebos to test drugs sometimes has a surprising result. Researchers say people taking the placebo often report improvements in their health. This is known as "the placebo effect"--pain that is eased or stopped by an inactive substance. In such testing, the drug must perform. better than the placebo to prove that it is effective. Doctors have reported that the placebo effect can be used in treatment. For example, a doctor tells a patient that a new drug will stop the pain in his leg. The pill is only sugar. But the patient does not know that. He takes the pill and says his pain is gone. Scientists are beginning to discover some physical reasons for this reaction in some people. They are learning that much of what people believe to be true comes from what the brain expects is going to happen. If the brain believes a drug will ease pain, the brain may begin physical changes in the body that can cause the expected effect. A recent examination of studies on drugs for depression found that placebos eased the depression about as well as the active drugs. Other studies have explored the power of placebos. A study in Japan involved thirteen people who reacted to the poison ivy (常青藤)plant. Poison-ivy causes red itchy sores(伤痕)on some people who touch it. Each person was rubbed on one arm with a harmless leaf, but was told it was poison ivy. Each person was then touched on the other arm with poison ivy, but was told it was a harmless leaf. All thirteen people developed a reaction on the arm where the harmless leaf touched their skin. Only two reacted to the poison ivy leaves. Doctors and scientists worry that the use of placebos may not always be harmless. They say people can become victims of false doctors and others who use placebos to claim they can cure disease. What do medical researchers usually use to make placebo pills？ A．Ivy leaves. B．Harmless leaves. C．Medicine being tested. D．sugar.

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• 听力原文：Man: We offer a very personalized service to the different divisions. Some of the听力原文：Man: We offer a very personalized service to the different divisions. Some of the staff are dedicated to groups of individuals within these divisions. That way we get to know what sort of service they are looking for and how much help they need from us over conference organization or brochures or whatever. What we do insist on, whether it’s leaflets or posters or local information, is quality. You will hear another five recordings. For each recording, decide what the speaker is talking about. Write one letter （） next to the number of the recording. Do not use any letter more than once. You will hear the five recordings twice. A reception B research and development C shop floor D payroll E human resources F information technology G publicity H canteen

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• English and Chinese have great differences in the expression of numbers, which is mainly reflected in their different ways of segmentation. In English every ______ single digit is put in a segment, and each segment is denoted by words like "thousand", "million", "billion" and "trillion" from low to high. In Chinese, every four single digit is put in a segment.

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• 如果Number=3，请指出下列语句的真与假。 If Number = 3, point out the truth and false of the following statements. Int（Number * Number) = Number * Number

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• 如果Number=3，判断下列命题的真假。 If Number = 3, judge the truth of the following propositions. （Number*Number)＞=（2*Number)

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• Your company manages the stock of various advertising articles on a quantity and value basis.In the future, you want to analyze the value of these advertising articles.Unfortunately, the articles have been created with different material types, material groups, valuation classes, and in different number range intervals.For this reason, you want to change the assignments.Which of the following changes are possible, even if stock exists for the articles？ Please choose the correct answer.()

  A.You create a new valuation class and then change the valuation class of the advertising articles to the new valuation class B.You create a new material type and then change the material type of the advertising articles to the new material type C.You create a new material group and then change the material group of the advertising articles to the new material group D.You create a new number range interval and then change the material numbers of the advertising articles to a number in the new number range interval

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