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【简答题】
已知一直齿圆柱标准齿轮，其齿顶圆直径测出为108mm，齿数z=25，试求其模数m。
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举一反三
【单选题】The play is starting ______ five minutes but the theatre is only half full.
A.
for
B.
by
C.
with
D.
in
【简答题】The play is starting ____________________five minutes but the theatre is only half full． [A]for [B]by [C]with [D]in
【简答题】The play is starting _____ five minutes but the theatre is only half full. [A]for [B]by [C]with [D]in
【简答题】NADH 氧化呼吸链和 FADH 2 氧化呼吸链的交汇点是( )。
【单选题】Before starting discussing the problem, just Mr Benson. [ ]
A.
hear from
B.
hear about
C.
hear out
D.
hear of
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