SQ21型切丝机的液压泵工作时异常发热的原因分析及排除过程。

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问题:

SQ21型切丝机的液压泵工作时异常发热的原因分析及排除过程。

考点:烟机设备修理工考试制丝设备修理工技师制丝设备修理工技师题库
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慧眼识错,看看你的识错能力怎样。对的画“√”,错的画“×”。

( ) 1. Drink some bread.

( ) 2. Eat some hot dogs.

( ) 3. Drink some water.

( ) 4. Eat some rice.

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在保存或收集证据的时候应当注意证据的特性,不能“捕风捉影”,更不能“主观臆断”。这强调的是证据的( )

A.客观性

B.关联性

C.合法性

D.完整性

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—Excuse me. Can you tell me _______ to get to the airport?
—Take a taxi.

A. what  
B. when  
C. how  
D. where
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某电路中电场随时间变化的图像如下列各图所示,能发射电磁波的电场是(  ).

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The history of African—Americans during the past 400 years is traditionally narrated (1) an ongoing struggle against (2) and indifference on the part of the American mainstream, and a struggle (3) as an upward movement is (4) toward ever more justice and opportunity.

Technology in and of (5) is not at fault; it’s much too simple to say that gunpowder or agricultural machinery or fiber optics (6) been the enemy of an (7) group of people. A certain machine is put (8) work in a certain way—the purpose (9) which it was designed. The people who design the machines are not intent on unleashing chaos; they are usually trying to (10) a task more quickly, cleanly, or cheaply, (11) the imperative of innovation and efficiency that has ruled Western civilization (12) the Renaissance.

Mastery of technology is second only (13) money as the true measure of accomplishment in this country, and it is very likely that by (14) this under-representation in the technological realm, and by not questioning and examining the folkways that have (15) it, blacks are allowing. (16) to be kept out of the mainstream once again. This time, however, they will be (17) from the greatest cash engine of the twenty-first century. Inner-city blacks in particular are in danger, and the beautiful suburbs (18) ring the decay of Hartford, shed the past and learn to exist without contemplating or encountering the tragedy of the inner city.

And blacks must change as well. The ways that (19) their ancestors through captivity and coming to freedom have begun to loose their utility. If blacks (20) to survive as full participants in this society, they have to understand what works now.

5()

A.itself

B.themselves

C.ourselves

D.himself

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