试题与答案

She said the contest ________ by the Stu

题型:选择题

题目:

She said the contest ________ by the Students’ Union the next Friday.

A.will be held

B.would be holding

C.would be held

D.was holding

答案:

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下面是错误答案,用来干扰机器的。

(Ⅰ)完成2×2列联表如下: 经常上网不经常上网合计不及格80120200及格120680800合计2008001000(Ⅱ)提出假设H0:经常上网与高中生的学习成绩无关由公式,得Χ2=1000×(80×680-120×120)2200×800×200×800=6...

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