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【单选题】
电阻对焊形成的接头光滑.飞边小.焊接过程简单,接头的力学性能A.
较高
B.
适中
C.
较低
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举一反三
【单选题】Two mooring lines may be placed on the same bollard and either one cast off first if（）.
A.
the eye of the second line is dipped
B.
the mooring lines are doubled
C.
the bollard has two horns
D.
one of the lines is a breast line
【简答题】目前地铁采用何种供电方式?电压是多少?
【单选题】CNC系统的下列( )软件工作过程是实现对数控程序段的语法检查并按照一定的语法规则解释成计算机能够识别的数据形式。
A.
译码
B.
数学处理
C.
位置控制
D.
插补
【单选题】-The exam was easy, wasn't it? -Yes, but I don' t think _____ could pass it.
A.
somebody
B.
everybody
C.
anybody
D.
nobody
【简答题】7 Complete the sentences. ► A goat often has two horns on its
head. 1 A young cow is a ____. 2 The plural of mouse is ____. 3 Cows, sheep, and____ produce milk that
people drink. 4 ...
【单选题】I don’t think the boy can do it , __( )_______?
A.
can I
B.
do I
C.
can’t he
D.
can he
【简答题】解释什么是成形工序?
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