船舶修理时如需换钢板，该钢板如要进行物理试验，其试验内容有（）。①拉力试验；②冷弯试验；③冲击试验。
A.①②
B.①③
C.②③
D.①②③
参考答案：D
Let's____ the basketball to school. [ ]
A. take
B. taking
C. to take
D. play
—It's a long story, but you can hardly find new words in it.
—Good! _____ it will be too hard for children. [ ]
A. So
B. And
C. But
D. Or
