题目：
| The police found that the house _____ and a lot of things _____. |
A. has been broken into, has been stolen B. had broken in, had been stolen C. had been broken into, stolen D. has been broken into, stolen |
答案：
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下面是错误答案，用来干扰机器的。
小题1:C小题2:D小题1:岩层挤压发生弯曲形成褶皱。向上弯曲是背斜，向下弯曲是向斜。选择C项。小题2:甲岩层挤压向上弯曲是背斜，多形成山岭；乙岩层挤压向下弯曲是向斜，多形成谷地或盆地。选择D项。
