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【简答题】
有关力偶的性质叙述正确的是____。 A. 力偶对任意点取矩都等于力偶矩,不因矩心的改变而改变; B. 要保持力偶矩不变,则不能改变力偶中力的大小与力偶臂的长短; C. 力偶有合力,力偶可以用一个合力来平衡; D.力偶对刚体既产生转动效应又能够产生移动效应。
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举一反三
【单选题】设有一个顺序栈S,元素A,B,C,D,E,F,依次进栈,如果六个元素出栈的顺序是B,D,C,F,E,A,则栈的容量至少应是 ( )。
A.
3
B.
4
C.
5
D.
6
【单选题】Goldfish don’t know _______ to them three seconds ago.
A.
what happens
B.
what is happening
C.
what happen
D.
what happened
【单选题】What happens in the film bears little ______ to what actually happened.
A.
resentment
B.
resemblance
C.
likelihood
D.
unification
【单选题】辅助生产费用采用计划成本分配法分配的特点是（ ）。
A.
直接将辅助生产车间发生的费用分配给辅助生产车问以外的各个受益单位或产品
B.
辅助生产车间生产的产品或劳务按照计划单位成本计算、分配
C.
根据各辅助生产车间相互提供的产品或劳务的数量和成本分配率，在各辅助生产车间之间进行一次交互分配
D.
按照辅助生产车间受益多少的顺序分配费用
【简答题】After a thorough investigation of what happens during the earthquake, scientists use ______ to rate the actual damage.
【单选题】He asked his father .
A.
where it happens
B.
what was happen
C.
how it happened
D.
what happens
【单选题】But what happens when your “online” life becomes your “main” life? (Lines 31 – 32)
A.
But what happens if you make a living by engaging in online business?
B.
But what happens if you prefer your “online” life to your “main” life?
C.
But what happens if the Internet dominates your daily life?
【单选题】—Susan stays alone in the classroom and looks sad. —_____________to her?
A.
What happens
B.
What has happened
C.
What is happening
D.
What was happening
相关题目：
【单选题】He asked his father .
A.
where it happens
B.
what was happen
C.
how it happened
D.
what happens