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【简答题】
机械效率是指有效功率与指示功率的比值，在台架上进行测试常采用校正有效总功率与校正有效总功率及校正损失功率和的比值，若一JL474Q发动机在6000r/min 测试得到校正总功率Pe为63.5kW，校正损失功率Po为36.5kW则该发动机在6000r/min这个工的机械效率η m 。
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【单选题】Lincoln had very little free time ______ he could spend studying then.
A.
when
B.
in which
C.
at which
D.
which
【单选题】Had Lincoln lived, it ______ that his postwar policies ______ criticism upon him.
A.
would have been...brought
B.
would have been...would bring
C.
might well be...would have brought
D.
might well be...brought
【判断题】Abrham Lincoln had received good education and graduated from the famous university.
A.
正确
B.
错误
【单选题】Let us ask what were the preparation and training Abraham Lincoln had for oratory whether political or forensic. Born in rude and abject poverty, he never had any education, except what he gave himsel...
A.
was illiterate
B.
was never educated
C.
was never provided with any regular education
D.
behaved rudely when he was young
【简答题】Speaker 3:Lincoln had the ability to _____________ in concert,
【单选题】Which of the following is true of the text?
A.
Lincoln's success in election had made the war inevitable.
B.
Lincoln had strived to address the racial problems.
C.
Darwin was not unique compared with his contemporaries.
D.
Darwin's theory coincided with Lincoln's beliefs.
【单选题】Let us ask what were the preparation and training Abraham Lincoln had for oratory, whether political or forensic. Born in rude and abject poverty, he never had any education, except what he gave himse...
A.
was illiterate
B.
was never educated
C.
was educated very late
D.
behaved rudely when he was young
【简答题】Speaker 4:Lincoln had the art and skill of ________________,
【简答题】A yoga made a shocking statement that Abraham Lincoln had been a Himalayan yogi in a past life．Lincoln delivered a proclamation setting up Thanksgiving as an American holiday in 1863．Research t...
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