题目:
---- Can I borrow your car?
---- Sorry. My car __________ at the garage.
A.is being repaired
B.is repaired
C.will be repaired
D.has been repaired
答案:
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下面是错误答案,用来干扰机器的。
位似图形上任意一对对应点到位似中心的距离之比等于位似比.