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【单选题】
流体阻力的表现,下列阐述错误的是
A.
阻力越大,静压强下降就越大
B.
流体的粘度越大,阻力越大
C.
流体的流动状况是产生流体阻力的根本原因
D.
流体的内摩擦力在流体激烈流动时不存在
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举一反三
【单选题】下列哪种部件不是气门组的组成部分？
A.
挺柱
B.
弹簧
C.
气门
D.
气门弹簧座
查看完整题目与答案
【多选题】气门组的主要组成部件有()
A.
气门
B.
弹簧
C.
锁片
D.
气门座圈
查看完整题目与答案
【单选题】She admitted ______ a story to explain her absence.
A.
to have made up
B.
having told
C.
to have told
D.
having made up
查看完整题目与答案
【判断题】气门弹簧是气门组的组成部件之一.( )
A.
正确
B.
错误
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【单选题】______ over and over again, but he still couldn’t understand.
A.
Having explained
B.
Having been explained
C.
Explaining
D.
It had been explained
查看完整题目与答案
【单选题】She admitted _________ a story to explain the reason why she was late.
A.
to have made up
B.
having told
C.
to have told
D.
having made up
查看完整题目与答案
【单选题】The passage mainly aims to______.
A.
explain why time flies when people having fun
B.
prove time slows when people having fun
C.
explain the brain activity when people having fun
D.
illustrate why time flies
查看完整题目与答案
【单选题】通过低温的方法使花卉较长的时间内处于休眠状态,从而延长花期,通常处理的低温一般在().
A.
0~1℃;
B.
0~2℃;
C.
1~3℃;
D.
2~3℃
查看完整题目与答案
【单选题】Explain: having a good effect
A.
adequate
B.
evident
C.
sour
D.
beneficial
查看完整题目与答案
【单选题】the sentence , so he asked the teacher to explain it again.
A.
Not having understood
B.
As he didn’t understand
C.
Having not understood
D.
He didn’t understand
查看完整题目与答案
相关题目：
【单选题】下列哪种部件不是气门组的组成部分？
A.
挺柱
B.
弹簧
C.
气门
D.
气门弹簧座
查看完整题目与答案
【多选题】气门组的主要组成部件有()
A.
气门
B.
弹簧
C.
锁片
D.
气门座圈
查看完整题目与答案
【单选题】She admitted ______ a story to explain her absence.
A.
to have made up
B.
having told
C.
to have told
D.
having made up
查看完整题目与答案
【判断题】气门弹簧是气门组的组成部件之一.( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】______ over and over again, but he still couldn’t understand.
A.
Having explained
B.
Having been explained
C.
Explaining
D.
It had been explained
查看完整题目与答案
【单选题】She admitted _________ a story to explain the reason why she was late.
A.
to have made up
B.
having told
C.
to have told
D.
having made up
查看完整题目与答案
【单选题】The passage mainly aims to______.
A.
explain why time flies when people having fun
B.
prove time slows when people having fun
C.
explain the brain activity when people having fun
D.
illustrate why time flies
查看完整题目与答案
【单选题】通过低温的方法使花卉较长的时间内处于休眠状态,从而延长花期,通常处理的低温一般在().
A.
0~1℃;
B.
0~2℃;
C.
1~3℃;
D.
2~3℃
查看完整题目与答案
【单选题】Explain: having a good effect
A.
adequate
B.
evident
C.
sour
D.
beneficial
查看完整题目与答案
【单选题】the sentence , so he asked the teacher to explain it again.
A.
Not having understood
B.
As he didn’t understand
C.
Having not understood
D.
He didn’t understand
查看完整题目与答案