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【简答题】
We learn from Paragraph l that [A] ESPN has its offices around the world [B] all chairs in Beardsley ' s class were taken away [C]ockey is a popular sport in New York [D] Beardsley ' s course on hockey is very popular
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反馈参考答案：
举一反三
【单选题】I told Sally how to get there, but perhaps I for her.
A.
had to write it out
B.
must have written it out
C.
should have written it out
D.
ought to write it out
【简答题】普通平键联接当采用双键时两键在轴向应相隔______布置;用双楔键联接时两键在轴向应相隔_________布置。
【简答题】I to get there before seven tomorrow, so I’ll have to get up early. ( tell )
【单选题】以操作人员的操作位置所在的平面为基准，机械加工设备凡高度在（ ）之内的所有传动机构的可动零、部件及其危险部位，都必须设置安全装置。
A.
2m
B.
2.5m
C.
3m
D.
3.5m
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