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【单选题】
( )的正立面投影反映该线段实长及对H面、W面的的倾角;在H面及W面上的投影均垂直OY轴。
A.
水平线
B.
铅垂线
C.
正平线
D.
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参考答案:
举一反三
【单选题】Please don't speak of this. I don't want it to ________. [     ]
A.
get along
B.
get on
C.
get to
D.
get around
【单选题】____the bus until it has stopped.
A.
Not get off
B.
Don’t get off
C.
Didn’t get off
D.
Get not off
【单选题】_____the bus until it _______.
A.
Get off, stops
B.
get off, will stop
C.
Don’t get off, stops
D.
Don’t get off, will stop
【单选题】I will make sure that you ______.
A.
won't get lost
B.
don't get lost
C.
won't lost
D.
lost
【单选题】______ the bus ______ it has stopped. [     ]
A.
Don't get off; until
B.
Get on; until
C.
Don't get off; after
D.
Get on;  before
【单选题】They built the wall especially high so that the little boy couldn’t ______ it.
A.
get on
B.
get up
C.
get to
D.
get over
【单选题】The line was engaged and I couldn't ______. [     ]
A.
get to
B.
get on
C.
get down
D.
get through
【单选题】______ the bus until it ______..
A.
Get off, stops
B.
Get off, will stop
C.
Don’t get off, stops
D.
Don’t get off, will stop
【单选题】Don't go out. I don't want you to ______. [     ]
A.
get lose
B.
get missed
C.
get miss
D.
get lost
【单选题】当环境温度升高时,二极管反向饱和电流的数值将会 ( ) 。
A.
增加
B.
不变
C.
减小
D.
不确
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