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【单选题】
● 在Excel的A1单元格中输入函数“=ROUND(3.1415，2)”，则A1单元格中显示的值为 （57） 。 （57）A.
3.1
B.
3.14
C.
3.142
D.
3.1415
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反馈参考答案：
举一反三
【单选题】According to the passage, which of the following phenomena did Einstein describe in his General Theory of Relativity, that was not explained by Newton's theory?
A.
A solution to the Michelson-Morley experiment.
B.
The motions of distant planets.
C.
How light could travel in a vacuum.
D.
The nature of gravity.
【简答题】如图所示的电路中，已知C=0.01uF，输入电压 u[ i =10\sqrt{2}sin(ωt)V ]，f=1200Hz。试求：
【简答题】In his composition he made few spelling mistakes.
【单选题】When he was in the countryside， he __________ visit the poor peasants．
A.
used to
B.
was used to
C.
is used to
D.
had used to
【简答题】steal phenomena
【单选题】The boss will try his best to do the work with _____ money and _____ people.
A.
few; little
B.
a few; a little
C.
less; fewer
D.
fewer; less
【单选题】当细胞癌变时,其表面发生的变化是:
A.
HLA-Ⅰ类抗原显著减少
B.
HLA-Ⅰ类抗原显著增加
C.
HLA-Ⅱ类抗原显著减少
D.
HLA-Ⅱ类抗原显著增加
E.
都减少
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