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【简答题】
叙述地脚螺栓拧紧的 3 个步骤
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【单选题】— ______ boy is Tom? —The one in a red cap. [     ]
A.
Which
B.
What
C.
Where
D.
Who
【单选题】深化文化体制改革的重点是______
A.
发展
B.
体制机制创新
C.
改革
D.
创造生产更多更好更适应人民群众需求的精神文化产品
【单选题】今有两种压杆,一为中长杆,另一为细长杆,在计算临界力时,如中长杆误用细长杆公式,而细长杆误用中长杆公式,其后果是 ( )
A.
两杆都安全
B.
两杆都不安全
C.
中长杆不安全,细长杆安全
【单选题】Which of the following is true about the action of CAP at the lac promoter?
A.
CAP monomer binds directly to the promoter stimulating polymerase to bind.
B.
CAP-AMP blocks recruitment of polymerase to the promoter.
C.
CAP blocks the αCTD of RNA polymerase.
D.
Binding of the CAP-cAMP to the lac activator-binding site recruits RNA polymerase.
E.
CAP monomer binds directly to the promoter stimulating polymerase to bind and CAP blocks the αCTD of RNA polymerase are correct.
【简答题】求P(S2/σ2≤2.041),其中,S2为样本方差;
【单选题】Which of the following is NOT a function of the mRNA cap?
A.
protects the mRNA from degradation
B.
enhances translatability of the mRNA
C.
enhances transport of the mRNA to the cytoplasm
D.
enhances splicing of the mRNA
E.
helps regulate expression of the mRNA
【单选题】文学家在作品中记录了大量的人物对话,作品中的这些对话属于
A.
口语
B.
书面语
C.
白话
D.
书面口语
【判断题】文学家在作品中记录了大量的人物对话,作品中的这些对话属于口语。
A.
正确
B.
错误
【单选题】以下程序的输出是? #include using namespace std; int main() { char s1='W'; char s2='X'; char &rs=s1; rs = s2; char *ps = &s1; ps = &s2; cout<
A.
WXXX
B.
XXXX
C.
WWWW
D.
WXWX
【单选题】Which of the following is NOT a reason why the thinning of the polar ice cap would be disastrous to the world?
A.
The polar ice cap plays a crucial role in the world’s weather system.
B.
The thinning of the polar cap might ener ships on the sea.
C.
The thinning of the polar cap might cause the sea level to be raised.
D.
The thinning of the polar cap might cause some seaside cities and small islands to be swallowed by the sea.
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