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【单选题】
船舶进出港和窄水道航行时用双泵并联工作 ____ 。
A.
转舵速度提高 1 倍
B.
转舵扭矩提高 1 倍
C.
工作油压约提高 l 倍
D.
都不对
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参考答案:
举一反三
【单选题】小排量汽油轿车上的启动机,在做全负荷试验时其电流一般为( )安
A.
50-60
B.
70-100
C.
90-150
D.
大于240
【简答题】一物体放在水平地面上时,对地面的压力为 20 N 画出它对地面的压力的示意图.
【单选题】人类航空史上第一种投入实战的喷气机的制造商是?( )
A.
梅塞施密特公司
B.
汉堡飞机制造厂
C.
波音公司
D.
福克-沃尔夫公司
【单选题】小排量汽油轿车上的启动机,在做全负荷试验时其电流一般( )安
A.
50-60
B.
70-100
C.
90-150
D.
大于240
【单选题】小排量汽油轿车上的启动机,在做全负荷试验时其一般为()安。
A.
A50--60
B.
B70--100
C.
C90--150
D.
D大于240
【单选题】–Look! A blind man is in the middle of the street. It’s too dangerous. –Let’s help him go the street
A.
across
B.
cross
C.
through
D.
along
【单选题】One of the professor's friends help him by taking care of his children for him.
A.
Right.
B.
Wrong.
C.
Doesn't say.
【简答题】A.A drugstore. B.The name of high building. C.The man who help him. D.The name of a street.
【单选题】In the case of Roger, how the social worker Annick help him define himself as an entrepreneur?
A.
She didn't help him at all and he committed suicide.
B.
She got him a job working on the assembly line of a Chinese car company.
C.
She found a course for Roger to train for a new job.
D.
She found a psychologist that he could talk to.
E.
She helped him turn his hobby of carpentry into a freelance enterprise.
【单选题】53小排量汽油轿车上的启动机,在做全负荷试验时其电流一般为()安
A.
A50--60
B.
B70--100
C.
C90--150
D.
D大于240
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