题目内容
Ropes of wires attached to derricks to prevent them from swinging during cargo handling operations are ______.
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Radar is used not only to look______，but also to measure their distances away from you．
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房屋主体结构基本完成时，内粉刷部分脱落，墙体轻度倾斜，需要进行正常修理，根据房屋的分类标准，该房屋属于()。
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