问题 多项选择题

对于上回转的小车变辐的塔式起重机,吊钩装置顶部至小车架下端的极极限位置应为()

A.起升钢丝绳的倍率为2倍率时,其极限位置应为1000mm

B.起升钢丝绳的倍率为2倍率时,其极限位置应为800mm

C.起升钢丝绳的倍率为4倍率时,其极限位置应为700mm

D.起升钢丝绳的倍率为4倍率时,其极限位置应为400mm

答案

参考答案:A, C

阅读理解与欣赏

阅读下面一首宋词,然后回答问题。

【苏幕遮】草

梅尧臣

露堤平,烟墅杳。乱碧萋萋,雨后江天晓。独有庾郎年最少。窣地春袍,嫩色宜相照。

接长亭,迷远道。堪怨王孙,不记归期早。落尽梨花春又了。满地残阳,翠色和烟老。

(1)这首词“翠色和烟老”中的“老”字用得极妙,请分析其妙在何处。

答:                                                                                                                                                                                                                                                                                                                                              

(2)宋代沈义父云:“咏物词,最忌说出题字。”(《乐府指迷》)这首咏草词虽不着一“草”字,却将春草写得形神兼备。试结合词句作简要分析,并指出作者借咏草抒发了怎样的感情。

答:                                                                                                                                                                                                                                                                                                                                                                                                                                  

单项选择题