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问题
问答题 简答题
蒸汽吊车的走行部由几个转向架组成？
答案
参考答案：
蒸汽吊车的走行部安装两台转向架。
选择题
—Do you often go outing?
—_____.
A. Yes, never
B. Yes, sometimes
C. No, ever
D. No, usually
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选择题
My grandfather has _____ for ten years.
A. been dead
B. died
C. death
D. dead
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