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【简答题】
电路在正弦稳态时的网络函数随频率变化的特性,称为__,频率响应特性分为__特性和__特性。
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皮皮学刷刷变学霸
举一反三
【简答题】人体最大的消化腺是___ __。
【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
【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
【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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