将圆截面压杆改成横截面面积相等的圆环截面压杆,其他条件不变,则其临界力()。
A.增加
B.减小
C.不变
D.增加、减小或不变
第1题
If only the committee ______ the regulations(规章) and put them into effect as soon as possible.
A.approve
B.Will approve
C.can approve
D.would approve
第2题
If only the committee ______ the regulations and put them into effect as possible.
A.approve
B.will approve
C.can approve
D.would approve
第3题
A.approve
B.will approve
C.can approve
D.would approve
第4题
and put them into effect as soon as possible.
A) approve B) will approve
C) can approve D) would approve
第5题
A) approve
B) will approve
C) can approve
D) would approve
第6题
______that should be given priority to.
A.It is the committee has decided
B.It is only the committee has decided
C.It is what the committee has decided
D.It is what has the committee decided
第7题
The committee ______ a conclusion only after days of discussion.
A.achieved
B.reached
C.arrived
D.completed
第8题
The committee ______ a conclusion only after days of discussion.
A.achieved
B.reached
C.arrived
D.completed
第9题
if only the committee ______ the proposal and put them into effect as soon as possible.
A) accept B) have accepted
C) accepted D) should accepted
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