皮皮学，免费搜题
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搜题
【单选题】
对于形状复杂的工件,因毛坯精度不易保证,若用直接找正安装很难使工件上各个加工面都有足够和比较均匀的加工余量,一般采用( )找正安装。A.
划线
B.
直接
C.
专用夹具
D.
其他
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皮皮学刷刷变学霸
举一反三
【单选题】The train ______ of the station right on time.
A.
pulled
B.
pulled down
C.
pulled on
D.
pulled out
【简答题】In that context, single chips are sometimes( ) to as “sockets”.
【单选题】The buildings in the old market have been pulled down to make ________ for a new park in our city. [ ]
A.
room
B.
place
C.
area
D.
ground