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【单选题】
看拉延模上模和下模图,并思考,以下说法中错误的是( ) A 此模具为小型模具 B 图中4所指位置设有加工基准 C 压边圈材料为Cr12MoV D 压边圈上有拉延筋A.
B.
C.
D.
D
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皮皮学刷刷变学霸
举一反三
【简答题】A:
He came to help us. B: He didn’t say anything.
【单选题】He came to help us _____ he had plenty of work to do.
A.
as
B.
while
C.
although
D.
whenever
【单选题】We ____ the task by the time he came to help us. [ ]
A.
had finished
B.
finished
C.
finish
D.
will have finished
【单选题】Although he had _____ work to do, he came to help us. [ ]
A.
a plenty of
B.
a great deal
C.
many
D.
lots of
【简答题】He came to help us _________ he had plenty of
work to do.A. as B. while C. although D. whenever
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