题目内容

以下程序的输出结果是()。

A. 95
B. 86
C. 0
D. 33

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已知x = [1, 2, 3, 4, 5, 6, 7]，那么x.pop()的结果是()。

A. 1
B. 4
C. 7
D. 5

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sum([i*i for i in range(3)])的计算结果是( )。

A. 3
B. 5
C. 2
D. 14

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A reaction mixture for PCR consists of ____________

A.heat unstable polymerase
B.primers in a limited amount
C.deoxynucleoside triphosphate (dNTPs)
D.a region complementary to the sequence to be amplified

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These are steps taken in carrying out the PCR reaction: i) Attaching of primers by cooling ii) Denaturation of strands iii) DNA synthesis iv) Heating Which is the correct order? (Mentioned from starting to ending the reaction)

A.i)-ii)-iii)-iv)
B.ii)-i)-iii)-iv)
C.iv)-iii)-ii)-i)
D.iv)-ii)-i)-iii)

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以下程序的输出结果是()。

A. 95 B. 86 C. 0 D. 33

已知x = [1, 2, 3, 4, 5, 6, 7]，那么x.pop()的结果是()。

sum([i*i for i in range(3)])的计算结果是( )。

A reaction mixture for PCR consists of ____________

These are steps taken in carrying out the PCR reaction: i) Attaching of primers by cooling ii) Denaturation of strands iii) DNA synthesis iv) Heating Which is the correct order? (Mentioned from starting to ending the reaction)

A. 95
B. 86
C. 0
D. 33