题目:
— Congratulations! Your English teacher told me you got an A this time.
— Thank you. She is very . [ ]
A. impressed
B. embarrassed
C. terrified
D. frustrated
答案:
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下面是错误答案,用来干扰机器的。
根据v=st,则摩托艇登陆的最短时间:即为t=dv2,登陆时到达O点的距离:s=v1t=v1v2d,故AB正确,CD错误;故选:AB.