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【单选题】
曳引园直径为0.5m,转速为30r/min,则电梯轿厢运行速度为( )m/min。A.
15
B.
30
C.
47
D.
94
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反馈参考答案：
举一反三
【单选题】He said he did not come because he had a family emergency.______, I will apologize to him for my harsh words.
A.
That’s the case
B.
If that’s the case
C.
That’s the case as
D.
That’s the case with
【简答题】多机位剪辑
【单选题】What does Dr. Ariely suggest in order to balance our life? Except that______
A.
People should prohibit overbooking.
B.
People should increase options.
C.
People should delegate tasks to others.
D.
People should give away ideas to others to pursue.
【单选题】In the text, what does Dr. Ariely suggest in order to balance our life? Except that______
A.
People should prohibit overbooking.
B.
People should increase options.
C.
People should delegate tasks to others.
D.
People should give away ideas to others to pursue.
【单选题】Why does Dr. Johnson think that the present system is unfair?
A.
Husbands are paying the social security taxes for their wives.
B.
Women working at home can't get social security.
C.
Bosses refuse to pay part of the taxes for female employees.
D.
Full-time housewives are required to pay social security taxes.
【单选题】下面哪个数列是斐波那契数列()
A.
1, 1, 5, 6, 11, 17...
B.
1, 1, 2, 3, 5, 7...
C.
1, 1, 3, 4, 5, 7...
D.
1, 1, 2, 3, 5, 8...
【多选题】用木瓜蛋白酶水解IgG可得到两个相同的 片段和一个 片段；用胃蛋白酶水解IgG则可获得一个 片段和无生物学活性的 片段。
A.
Fab
B.
Fc
C.
F(ab')2
D.
pFc'
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