—Why didn't Alice come to the party last

题型:选择题

问题:

—Why didn't Alice come to the party last night?

—I don't know ______. [ ]

A. why didn't she

B. why she didn't

C. why did she

D. why she did

考点:宾语从句
题型:选择题
已知向量
a
=(2,-1,2),
b
=(-4,2,x)
,若
a
b
,则x=______;若
a
b
则x=______.
题型:选择题

如果需要你组织一个活动,增进新老同事之间的了解,你该怎么做?

题型:选择题

何为武举制?试述武举考试的内容及对武艺发展的影响。

题型:选择题

为探究草履虫对刺激的反应,小明制作了如下图所示临时装片,用显微镜观察发现草履虫将(  )

A.从左向右运动

B.从右向左运动

C.不运动

D.A,B,C皆有可能

题型:选择题

明沟排水坡度不小于()

A、4‰

B、5‰

C、6‰

D、7‰

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