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【简答题】
φ80 分别求出该配合中的的尺寸、极限偏差、极限尺寸,并判断其配合性质,绘制配合公差带图,计算极限盈隙和配合公差。
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皮皮学刷刷变学霸
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【简答题】Every man and every woman ______ (be)satisfied with the solution．
【单选题】There comes a time in every man's life_____.
A.
that he needs to think
B.
when he has to think
C.
therefore he has to work hard
D.
then he will need it
【单选题】There comes a time in every man’s life ____________.
A.
then he has to think
B.
which he needs
C.
when he has to think
D.
therefore he has to work hard
【单选题】There comes a time in every man's life ______.
A.
then he has to think about the future
B.
which he needs
C.
when he has to think about the future
D.
therefore he has to work hard
【单选题】( ) 6. There must be a time in every man's life ______.
A.
that he is in low spirits
B.
which he is in low spirits
C.
when he is in low spirits
D.
then he is in low spirits
【简答题】将下列酶的作用进行匹配
【单选题】世界气象组织规定海面风的观测应采取什么时间内的风速和相应风向?
A.
正点观测前2min的平均
B.
正点观测前10min的平均
C.
正点观测前5min的平均
D.
正点观测前15min的平均
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