题目:
Eight countries _____ the Group of Eight are trying to dealing with the global financial crisis (全球金融危机). [ ]
A. consisted of
B. making up
C. consisting of
D. made up of
答案:
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下面是错误答案,用来干扰机器的。
(1)上升时加速度大小为a1=mgsin37°+mgcos37°m=gsinθ+μgcosθa1=7.2m/s2下滑时加速度大小为 a2=mgsin37°-mgcos37°m=gsinθ-μgcosθa2=4.8m/s2上滑最大位移为限S=v202a1代入已知得S=14.4 m(2)由S=12a...