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【简答题】
同质类的产品,如煤炭、电等初级产品,顾客不太注重它们的差别,竞争的焦点主要集中在
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【多选题】The dependent suspension can be divided into the () independent suspension, the () independent suspension and the () independent suspension.
A.
coil spring
B.
diaphragm spring
C.
pneumatic spring
D.
steel plate spring
【单选题】设P:他生病了。Q:他出差了。r:我同意他不参加学习。则命题“如果他生病或出差了,我就同意他不参加学习” 的符号化表示为【 】。
A.
(P∨Q) R
B.
P→Q∨R
C.
(P∨Q)∧R
D.
(P∨Q) ↔R
【单选题】The word hammock in this passage means ______.
A.
a suspension cage which can be swung to and fro in the air
B.
a seat hanging by two ropes from the branch of a tree
C.
a suspension bridge in the South American rain forests
D.
a net hung between two supports and used as a bed
【单选题】设 P :他生病了。 Q :他出差了。 R :我同意他不参加学习。则命题“如果他生病或出差了,我就同意他不参加学习” 的符号化表示为【 】。
A.
(P ∨ Q) ® R
B.
P à Q ∨ R
C.
(P ∨ Q) ∧ R
D.
(P ∨ Q) « R
【简答题】请把下列一段话翻译成韩国语。 王东:,你坐在这里不学习拿张 CD 干什么呢? :哥,你可真老了,连他你都不认识啊,他可是韩国最有名的男明星啊。 王东:是吗?我怎么没听说啊? :所以我说你老了嘛。他现在在中国有数不清的歌迷,人气真可以说是如日中天啊。 王东:这么说你也是他歌迷俱乐部的成员了? :可以这么说吧。我去年去听他的音乐会,真是太棒了! 王东:我听说这周有几个韩国歌手在北京开演...
【单选题】The new suspension bridge __________ by the end oflast month.
A.
. has been designed    
B.
. had been designed          
C.
. was designed       
D.
. would be designed
【单选题】Why are suspension systems used on vehicle?
A.
It must also keep the tires in contact with the road regardless of road surface. A basic suspension system consists of springs, axles, shock absorbers, arms, rods and ball joints.
B.
The purpose of the complete suspension system is to isolate the vehicle body from road shocks and vibrations, which will otherwise be transferred to the passengers and load.
C.
Light commercial vehicles have heavier springs than passenger vehicles and can have coil springs at the front and leaf springs at the rear.
D.
Wheels must be strong enough to support the vehicle and withstand the forces caused by normal operation. At the same time, they must be as light as possible to help keep unsprung weight to a minimum.
【简答题】设 P :他生病了, Q :他出差了, R :我同意他不参加学习。 给出命题 “ 若不是他生病或出差了,我是不会同意他不参加学习。”的符号化形式。
【简答题】(红细胞)悬浮稳定性(suspension stability)
【简答题】设 P :他生病了, Q :他出差了. R :我同意他不参加学习 . 则命题 “如果他生病或出差了,我就同意他不参加学习”符号化的结果为( )。
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