皮皮学,免费搜题
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【单选题】
关于输卵管结扎术,下列叙述不正确的是
A.
结扎的时间以月经干净后3~7天为宜
B.
结扎线松紧要适宜
C.
结扎方式以银夹法失败率最低
D.
应避免误韧带
E.
严格无菌操作
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【多选题】Harvard University is the longest in U.S. history. There are several lies of the Harvard Statue, they are______
A.
The “Founder” John Harvard was actually not the founder.
B.
The university was not founded in the year 1638 as is engraved on the statue.
C.
The statue of the person sitting on the chair is not John Harvard himself!
D.
John Harvard, worked the British Institute in 1637, and his work was very positive and was praised.
【判断题】差动轮系的自由度为1,行星轮系的自由度为2.
A.
正确
B.
错误
【判断题】差动轮系的自由度为2
A.
正确
B.
错误
【判断题】差动轮系的自由度为1。
A.
正确
B.
错误
【单选题】Which of the following statements about Yellen is INCORRECT?
A.
She once taught at Harvard University.
B.
She got tenure at Berkeley University.
C.
She has a Nobel Prize in Economic Theory.
D.
She has been working in the Federal Reserve for over 10 years.
【单选题】In the author's opinion, the debate at Harvard ________.
A.
is a symbol of the general bewilderment.
B.
will soon be over.
C.
will influence the future life in America.
D.
is interesting to Harvard men and their friends.
【判断题】在没有兴趣的地方耕耘,不会有收获。
A.
正确
B.
错误
【单选题】差动轮系的自由度为   。
A.
0
B.
1
C.
2
D.
不确定
【单选题】差动轮系的自由度为 。
A.
1
B.
2
C.
3
D.
4
【简答题】Earlier this year, we announced a new【L9】______at Harvard aimed at the
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