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【单选题】
当异步电动机采用星形—三角形降压启动时，每相定子绕组承受的电压是三角形接法全压起动时的（）倍。A.
2
B.
3
C.
1/
D.
1/3
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【单选题】What is required of those who want to be university teaching assistant?
A.
A good knowledge in information technology.
B.
A college degree in the right field.
C.
The right licenses in education.
D.
Full-time teaching experience.
【简答题】人体最大的消化腺是___ __。
【简答题】消化系统是由______和消化腺组成的．______是最大的消化腺．
【单选题】What is true about knowledge management?
A.
As baby boomers retire at an increasing rate, knowledge management is helping organizations capture their knowledge.
B.
A knowledge management system is not a single technology but a collection of technology-based tools.
C.
Finding the right technology to manage knowledge assets is much easier than identifying what knowledge is needed, why it is needed, and who has this knowledge.
D.
All of the above are true.
【单选题】What is the definition of a 'theory'?
A.
It's a reasonable explanation of known knowledge related.
B.
It is the product of a scientist's imagination.
C.
It results from previous theories.
D.
It can't predict events that have not as yet been observed.
【单选题】1676年,哪位科学家用自制的显微镜,第一次观察到微生物,为微生物学的发展奠定了基础。
A.
荷兰人列文虎克
B.
法国微生物学家巴斯德
C.
德国学者郭霍
D.
俄国学者伊凡诺夫斯基
E.
英国人弗莱明
【简答题】消化系统是由________和消化腺组成的。________是最大的消化腺。
【单选题】What is the feature of a knowledge economy ?
A.
People have to receive higher education to qualify for a professional position.
B.
Students majoring in liberal arts usually have difficulty securing a job.
C.
New positions are constantly created that require people to keep learning.
D.
Colleges find it hard to teach students how to cope with the changing economy.
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