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【单选题】
使用弹压卸料装置的级进模冲裁时,冲压工艺总力为 ( )。A.
冲裁力 + 卸料力 + 推件力
B.
冲裁力 + 卸料力 + 顶件力
C.
冲裁力 + 推件力
D.
冲裁力 + 卸料力
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举一反三
【单选题】When John called for help, Ron appeared very __________.
A.
brave
B.
selfish
C.
generous
D.
foolish
【单选题】Mary, I________ John of his promise to help you.
A.
told
B.
reminded
C.
warned
D.
advised
【单选题】____ was known to all, John had broken his promise ___ he would stay with us for some time .
A.
As; that
B.
As; which
C.
It; that
D.
Which; that
【简答题】-john is very If he promise to do something he'll do it. A.independent B.reliable C.confident D.flexible
【单选题】Ron and John promised to __________ in any case of danger.
A.
run away
B.
stay still
C.
call the police
D.
help each other
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