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【单选题】
主要是清洗、更换和修复少量易损件，并作适当的调整、紧固和润滑工作的是( )。A.
小修
B.
中修
C.
大修
D.
系统大修
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【简答题】阅读理解。 Playworld is a large theme park just outside New York. We employ hundreds of people and are still growing. We provide entertainment of many kinds: shows, parades, rollercoasters, carrousels , an...
【多选题】Richard Doll与Bradford Hill合作研究吸烟与肺癌的关系时,采用了哪些研究方法?
A.
临床对照试验研究
B.
病例对照研究
C.
动物实验
D.
队列研究
【单选题】How do Mr. Gentry and Ms. Kuhn probably know each other?
A.
Ms. Kuhn is Mr. Gentry's IT client.
B.
They are employees of the same company.
C.
They went to the same university.
D.
Mr. Gentry is an old friend of Ms. Kuhn.
【简答题】试找出非线性规划问题 的极大点，然后写出其Kuhn-Tucker条件，这个极大点满足Kuhn-Tucker条件吗？试加以说明。
【简答题】阅读下面的短文，并根据文章后的要求答题。（请注意问题后的词数要求） If you are worried about things and are under a lot of stress at work or school, then you are probably not sleeping well. Worry can keep you awake, tossing and turnin...
【判断题】Pessimists do much better in school and ar work, age well and live longer.
A.
正确
B.
错误
【简答题】Directions: Read the passage followed by some unfinished statements. Choose the best answer from the four choices marked A., B., C. and D.. Subways are underground trains, which usually operate 24 hou...
【单选题】希腊语“His正确oria”的含义是()。
A.
研究历史和通过研究获得的技能。
B.
研究知识和通过研究获得的知识。
C.
研究历史和通过研究获得的理论。
D.
研究技能和通过研究获得的技能。
【单选题】In World War I, ______ are applied to test the personality of soldiers.
A.
Army Alpha and Army Beta tests
B.
Wechsler tests
C.
Stanford-Binet tests
D.
Inkblot tests and Thematic Apperception Test
【简答题】People wear them on their feet.
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