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【简答题】
When did the earliest settlers migrate to the British Isle A. About 600 B.C. B. About 200 B.C. C. About 600 A.D. D. About 200 A.D.
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【简答题】Through reading this article, we can conclude that the author is a(n)______person.
【简答题】假设人在行走时,与空气发生摩擦的摩擦面面积为2平方米,人的行走速度为5.4km/h,人体表面处的空气速度与人体相同,而距离人体10cm处空气速度就降为零。试通过牛顿内摩擦定律估算人行走时受到的空气摩擦阻力。空气的动力粘度系数可以查阅资料或到网上检索得到。(提示,人行走时的主要空气阻力是压差阻力,并不是摩擦阻力,摩擦阻力只占人行走时空气阻力的很小一部分。本题答案可以通过拍照提交计算过程和计算结果,也...
【简答题】What does the author want to convey through this passage?
【单选题】According to the author, the art of being a better employee can be acquired mostly through experience.
A.
Y
B.
N
C.
NG
【简答题】According to the author, getting rid of possessions and losing them through a natural disaster are vastly ________.
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