A body that’s moving with a constant speed travels once around a circular path. Which of the following is/are true concerning the motion?I. The displacement is zero. II. The average speed is zero. III
相似题目
-
The distance that a ship moves forward with each revolutionof its propeller,if there is no slip,is called().
-
Phonological rules may move phonemes from one place in the string to another. For example, Modern English verb ask was Old English askian, with the /k/preceding the/s/.Sound change as a result of sound movement is known as m().
-
You have an Exchange Server 2010 organization.You need to ensure that items in a user’s Inboxfolder that are older than 60 days are moved to a custom folder.What should you do first?()
-
A customer is moving to AIX from a competitor’s product. They need onsite assistance with the initial software installation of the new servers. Which of the following services offerings would be most appropriate to recommend?()
-
You have an Exchange Server 2010 organization named contoso.com.All users have a Personal Archive.You need to ensure that messages that are older than 90 days are moved from the user’s mailboxto the Personal Archive.What should you do?()
-
As a ship moves through the water,it drags with it a body of water called the wake. The ratio of the wake speed to the ship’s speed is called().
-
An adapter that works in France won’ t work in Australia or Japan. For that reason, it’ s important to have a reliable travel power adapter to bring with you.
-
Ageism refers to the belief that those with physical or mental disabilities or handicaps are superior to able-bodied people.
-
The __________ is a mythical creature with a lion's head and the body of a fish that is widely used as a mascot and national personification of Singapore.
-
What is the basic pattern of the sentence describing Alexander: “With his handsome face, his fiery glance, his strong body, his purple and gold cloak, and his air of destiny, he moved through the parting crowd toward the Dog’s kennel.”?
-
With the subject-to-subject comparison, you can use appropriate transitions such as _______________ to move smoothly between the body paragraphs.
-
To move an organ, piece of skin etc from one person’s body and put it into another as a form of medical treatment is called_____
-
“With consistency a great soul has simply nothing to do” is a famous sentence that appears in Emerson’s essay ___________.
-
It’s _____ knowledge that the earth moves around the sun.
-
The room is so ______ with furniture—that it is hard to move about.
-
Over sixty years ago, Dr. Hans Selye recognized the mind-body connection involved with stress, as all of his patients had similar physiological and psychological characteristics. Studies done with laboratory rats found that these same physical responses existed with animals when they were put under stress. He came to the conclusion that stress is "the non-specific response of the body to any demand placed upon it". He concluded that each demand made on the body is unique in that there is a definite response: when we are cold, we shiver; when we are hot we perspire; a great muscular effort increases the demands upon the heart and vascular system.
-
Effects of Exercise on Elderly Diabetics(糖尿病人) Most older people with so-called type II diabetes(糖尿病) could stop taking insulin(胰岛素) if they would do brisk exercise for 30 minutes just there times a week , according to new medical research results reported in a Copenhagen newspaper, Results from tests conducted on diabetics at the Copenhagen central hospital Rigshospitalet’s Center for Muscle Research showed that physical exercise can boost the body’s ability to make use of insulin by 30 per cent. This is equal to the effect most elderly diabetics get from their insulin medication(药物治疗) today.
-
Kepler reconciled astronomy with physics, and substituted for fictitious clockwork a universe of material bodies not unlike the earth, freely floating and turning in space, moved by forces______.
-
Most people would define optimism as endlessly happy, with a glass that’s perpetually half fall. But that’s exactly the kind of false deerfulness that positive psychologists wouldn’t recommend. “Healthy optimists means being in touch with reality.” says Tal Ben-Shahar, a Harvard professor, According to Ben- Shalar,realistic optimists are these who make the best of things that happen, but not those who believe everything happens for the best.
-
When most people refer to multimedia, they generally mean the combination of two or more continuous media, usually with some user(115). In practice, the two media are normally audio and video, this is,(116)plus moving(117).It should be' obvious by now that transmitting multimedia material in uncompressed form. is completely out of(118). The only hope is that massive compression is possible. Fortunately, a large body of research over the past few decades has led to many compression techniques and algorithms that make multimedia transmission(119).
-
He recommended thatinstruction start with the general and then move to the particular and that nothing in books be accepted unless checked by a demonstration to the senses.
-
Those who had moved to America under the intention that America was paved with gold everywhere started to regret their decision.()
-
There’s a chance that your body may __________ the transplant, which is likely to lead to life-threatening complications(并发症、.( )
-
I’d like to come with you but that’s not a promise, don’t ________ it.
推荐题目
- 路基面的作用在于铺设轨道及在路肩上设置有关标志。
- 热线服务如长时间(如超过10分钟)仍然不能够解决故障,服务人员应()。
- 保卫部门爱各种报案,应注意报案要素,登记内容包括事件发生的时间、地点、事件有关人员的姓名、住址、工作单位、()。
- 班组核算的内容,应当从各班组的生产实际出发,坚持干什么算什么,不要强求一律,核算指标不易过多,要()。
- 我国戒毒方法中药物戒断常用的方法有()。
- 设有蓄能器的液压系统,应有(),同样的内容也应标注在液压原理图上。
- 排水堆载预压法适合于:
- 经大量输液后,休克病人应用强心剂的指征是()
- 在液体培养基种形成荚膜生长的细菌是()
- 计算机的硬件系统包括运算器、()存储设备、输入设备、输出设备