单项选择题
A. Put rat guard on the deck. B. Put rat guards on the moorings. C. Put rat guard under the moorings. D. Put rat guards under the moorings.
我们必须仔细使用每件工具并且用完后归还。（）A. We must use all kinds of tools...
单项选择题我们必须仔细使用每件工具并且用完后归还。（）
A. We must use all kinds of tools carefully and return it after using. B. We must use every tool carefully and return it after using. C. A+B D. We must use everything carefully and keep it after using.
稀料能稀释油漆。（）A. The thinner can thin down paint.B. The thi...
单项选择题稀料能稀释油漆。（）
A. The thinner can thin down paint. B. The thinner can clean. C. The thinner isn’t the paint. D. The thinner is the paint.
驾驶台是船舶的眼睛和耳朵。（）A. The bridge is very clean.B. The bridg...
单项选择题驾驶台是船舶的眼睛和耳朵。（）
A. The bridge is very clean. B. The bridge is the ship's eye and ear. C. The bridge is at the stern. D . The bridge is at the bow.
