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【多选题】
自动扶梯的润滑装置，主要有（ ）几种类型。A.
自动润滑装置
B.
电磁阀控制润滑装置
C.
滴油式润滑装置
D.
无润滑
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】—It is nearly six p.m. Will you have dinner here? —Sorry, _______. I have many things to do. [ ]
A.
I mustn't
B.
I can't
C.
I needn't
D.
I don't
【单选题】It is only when you nearly lose someone _____ fully conscious of how much you value him.
A.
do you become
B.
then you become
C.
have you become
D.
that you become
【单选题】The suspect that he had not been in the neighbourhood at the time of the crime.
A.
advocated
B.
alleged
C.
addressed
D.
announced
【单选题】It is only when you nearly lose someone fully conscious of how much you value him.
A.
do you become
B.
then you become
C.
that you become
D.
have you become
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