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What is true about sequences? （）
A . Once created, a sequence belongs to a specific schema.
B . Once created, a sequence is linked to a specific table.
C . Once created, a sequence is automatically available to all users.
D . Only the DBA can control which sequence is used by a certain table.
E . Once created, a sequence is automatically used in all INSERT and UPDATE statements.
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My brother Tim is（）sports
A . good for
B . good at
C . well at
D . well i
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Which two statements are true about IS -IS routing?（）
A . Based on the default timers, OSPF d etects a failure faster than IS - IS does.
B . OSPF default timers permit more tuning than IS - IS does.
C . IS - IS is more efficient than OSPF in the use of CPU resources.
D . OSPF is more scalable than IS - IS because of its ability to identify normal, stub, an d NSSA areas.
E . IS - IS and OSPF are both Open Standard, link - state routing protocols which support VLSM.
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You need to ensure that when the button is clicked， both update panels update the tim without generating a postback. What should you do？（）
A . Add the following marktip to UpdatePanel1. <Triggers> <asp:PostBackTrigger ControlID="btnSave" /> </Triggers>
B . Set the UpdateMode property for the UpdatePanel2 to "Always"
C . Add the following markup to UpdatePanel2 <Triggers> <asp:AsyncPostBackTrigger ControlID="btnSave" EventName="Click" /> </Triggers>
D . Set the UpdateMode property for UpdatePanel2 to "Conditional"
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The Company is concerned about Layer 2 security threats. Which statement is true about these threats？ （）
A . MAC spoofing attacks allow an attacking device to receive frames intended for a different network host.
B . Port scanners are the most effective defense against dynamic ARP inspection.
C . MAC spoofing, in conjunction with ARP snooping, is the most effective counter-measure against reconnaissance attacks that use dynamic ARP inspection (DAI) to determine vulnerable attack points.
D . Dynamic ARP inspection in conjunction with ARP spoofing can be used to counter DHCP snooping attacks.
E . DHCP snooping sends unauthorized replies to DHCP queries.
F . ARP spoofing can be used to redirect traffic to counter dynamic ARP inspection.
G . None of the other alternatives apply.
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Which two statements are true about IS - IS?（）
A . Interfaces have a default metric of 1.
B . Level 1 is intra - area and level 2 is interarea.
C . Level 1 routing is between an end system (ES) and IS while Level 2 routing is between an IS and IS.
D . Hosts send ISHs while routers send ESHs.
E . IS - IS is an open standard.
F . Metrics depend on interface speed.
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A balanced diet is essential for healthy __________.
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Bamboo is the panda’s ________ diet.
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What is the main food in the Northern Irish diet?
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Tim Brown argues that regardless of our job title or industry, “we all need to think like designers” — but why is this the case?
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Poor nu______ as a consequence of inadequate diet is a fundamental factor in the development of coronary heart disease.
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Which of the following is true about the diet of British people？
A．They usually prefer British food when eating at home.
B．They have non-British food only when eating out.
C．They do not like Chinese food very much.
D．Their everyday cuisine is diversified.
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It&39;s so calorie-dense that it&39;s very difficult for average people to burn off all the calories they consume in a day when sugar is a major com______ of their diet.
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What is the subject of Tim's first lecture？
A．Industrial Revolution
B．French Revolution.
C．Chinese Revolution.
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Hunting is at best a precarious way of procuring food, even when the diet is supplemented with
seeds and fruits. Not long after the last Ice Age, around 7,000 B.C. (during the Neolithic period),
some hunters and gatherers began to rely chiefly on agriculture for their sustenance. Others
continued the old pastoral and nomadic ways. Indeed, agriculture itself evolved over the courseof
(5) time, and Neolithic peoples had long known how to grow crops. The real transformation of human
life occurred when huge numbers of people began to rely primarily and permanently on the grain
they grew and the animals they domesticated.
Agriculture made possible a more stable and secure life. With it Neolithic peoples flourished,
fashioning an energetic, creative era. They were responsible for many fundamental inventions and
(10) innovations that the modern world takes for granted. First, obviously, is systematic agriculture--
that is, the reliance of Neolithic peoples on agriculture as their primary, not/nerely subsidiary,
source of food.
Thus they developed the primary economic activity of the entire ancient world and the basis of all
modern life. With the settled routine of Neolithic farmers came the evolution of towns and
(15) eventually cities. Neolithic farmers usually raised more food than they could consume, and their
surpluses permitted larger, healthier populations. Population growth in turn created an even
greater reliance on settled farming, as only systematic agriculture could sustain the increased
numbers of people. Since surpluses o food could also be bartered for other commodities, the
Neolithic era witnessed ihe beginnings of large-scale exchange of goods. In time the increasing
(20) complexity of Neolithic societies led to the development of writing, prompted by the need to keep
records and later by the urge to chronicle experiences, learning, and beliefs.
The transition to settled life also had a profound impact on the family. The shared needs and
pressures that encourage extended-family ties are less prominent in settled than in nomadic
societies. Bonds to the extended family weakened. In towns and cities, the nuclear family was
(25) more dependent on its immediate neighbors than on kinfolk.
What does the passage mainly discuss？
A．Why many human societies are dependent on agriculture
B．the changes agriculture brought to human life
C．How Neolithic peoples discovered agriculture
D．Why the first agricultural societies failed
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What type of sentence is “Mark likes fiction, but Tim is interested in poetry.”？
A. A simple sentence.
B. A coordinate sentence.
C. A complex sentence.
D. None of the above.
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I dont think itdvisble mt Tim ______ssigned to the job since he hs no experience.I dont think itdvisble mt Tim ______ssigned to the job since he hs no experience.will be B．be C．hs been D．is
A．will be
B．be
C．has been
D．is
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听力原文：W: Hi, Tim. I'm really sorry to hear about your grandfather. My sincerest sympathies go out to you and your family. He was such a great man.
M: Thanks. As you know, he had been sick for some time before he passed away, so we were somewhat prepared.
W: So, how's your grandmother taking it？
M: Oh, it's been really hard on her. I don't think you get over something like that.
W: Yeah, I'm sure. My heart really goes out to her. Uh, so how's your grandmother going to be able to manage things alone？
M: Well, financially, grandmother will be able to live a secure life from now on. I mean, grandfather had life insurance and substantial investments in property and stocks, so returns on those should take care of her. But our main concern at this moment is her emotional state. She's really down, so a call now and again should brighten her day.
W: So, what are the funeral arrangements？
M: Well, some of the family members will get together on Tuesday morning for a private memorial service, but there will be a viewing in the afternoon from 2:00 to 3:00, followed by the funeral service.
W: I wish there was something I could do for you.
M: Well, actually, there is. You know, grandfather really admired you a lot, and before he died, he asked if you'd sing a musical number at the funeral.
W: Really？ I'd be honored.
M: It would really mean a lot to the family.
W: Sure. Then, see you on Tuesday.
M: Okay, see you then.
(20)
A．He fell ill and passed away unexpectedly.
B．He died in a traffic accident.
C．He was ill for a certain period of time and then passed away.
D．He passed away when he was working.
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According to data from the Centers for Disease Control and Prevention, the biggest source of sodium in Americans' diets is_________
A. cheese
B. bread
C. pizza
D. sandwiches
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Miss Chen eats plenty of vegetables .Mr Lin has a lot of pizza .
Mr Lin 's diet is _____ _____ than Miss Chen's.
保持原句意思
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Woman: Is Tim aware of the consequences of smoking？ Man: Sure he is, but he's afraid that he'll gain weight if he quits. Question: Why does Tim smoke？
A．He isn't aware of the consequences of smoking.
B．He believes that smoking helps to keep his figure.
C．He's afraid of losing weight if he quits smoking.
D．He thinks smoking can make him handsome.
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According to Dela， among most diabetics the importance of exercise is __________of watching their diet. 查看材料
A.as poorly understood as
B.as well understood as
C.less understood than
D.better understood than the importance
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She does not seem to be（). but she often talks about dieting.
A．undenweight
B．slim
C．overweight
D．slender
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What is exceptionally remarkable about a child is that
A.he is born with the capacity to speak
B.he has a brain more complex than an animal’s
C.he can produce his own sentences
D.he owes his speech ability to good nursing
