1.选择题- (共8题)
2.AC311民用直升机是我国直升机大家族中一款轻型多用途直升机.该机型有中国航空工业集团公司自主研制,是具有国际先进水平的2吨直升机.若一架AC311民用直升机在一次作业时,将1000N的重物在2s内举高2m后,又停在空中10s.则后10s内,直升机对重物做功的功率为( )
3.长江是我国第一大河,长江全长S米,源头海拔H米,全年平均水流量为Q米3/秒.长江蕴藏着丰富的水力资源,假定不考虑支流并入及途中损失的水量,则长江蕴藏的水力资源为{#blank#}1{#/blank#}瓦.
8.某起重机将1×104N的重物沿竖直方向提起,重物由静止开始向上做变速直线运动,然后做匀速直线运动,已知重物在开始的30s内上升的高度为16m,在接着的10s内又匀速上升了8m.若空气阻力忽略不计,则在匀速运动过程中,起重机对重物的拉力的功率{#blank#}1{#/blank#}W;在上述的40s内重物运动的平均速度是{#blank#}2{#/blank#} m/s,克服重物重力做功{#blank#}3{#/blank#}J.
2.单项选择- (共12题)
9.
_____ relation between China and Russia has developed steadily since Vladimir Putin was re-elected ________ president last May.
A. The; the B. a; the C. The; 不填 D. A; 不填
A. The; the B. a; the C. The; 不填 D. A; 不填
10.
Tom wants to know if we can ____ John for the night, since he has lost all his money and can go nowhere.
A.put off | B.put on | C.put up | D.put down |
11.
Order came that all the army supply ______ to the front before daybreak.
A.be sent | B.should send | C.were sent | D.should have sent |
12.
There was nothing we could do that day ____ him down but _____ him in the house.
A.calm, lock | B.to calm, to lock | C.calming, locking | D.to calm, lock |
13.
The study showed a deep fear among the old people of _____ to the care of strangers.
A.abandoned | B.to be abandoned | C.being abandoned | D.abandoning |
14.
To look after my pets properly takes a lot of time but I find it _____.
A.worthy | B.worthwhile | C.worth | D.deserve |
15.
The lack of an ______ education denies them a chance to get a good job.
A.accurate | B.urgent | C.excessive | D.adequate |
16.
------ What do you think of Tom? I want to recommend him ____ my manager.
------ Not bad.
------ Not bad.
A.for | B.to | C.as | D.on |
17.
We’ll learn _____ benefits us no matter which country it comes from.
A.which | B.all | C.whatever | D.anything |
18.
It is the most severe situation _______ Japanese _______.
A.that, has faced | B.where, has faced |
C.that, have faced | D.where, have faced |
试卷分析
-
【1】题量占比
选择题:(8道)
单项选择:(12道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:10
7星难题:0
8星难题:2
9星难题:0