They have stayed in China for ._刷题宝

题干

They have stayed in China for .

A：two and half month

B：two and half months

C：two months and a half

D：two and a half month

上一题下一题 0.0难度选择题更新时间:2014-05-27 05:26:40

答案(点此获取答案解析）

C

同类题1

下列关于细胞核的说法，不正确的是（）

同类题2

反应A+3B⇌2C+2D，在四种不同情况下的反应速率分别为：

①v（A）=0.15mol•L^﹣1•s^﹣1；②v（B）=0.6mol•L^﹣1•s^﹣1；

③v（C）=0.4mol•L^﹣1•s^﹣1；④v（D）=0.6mol•L^﹣1•s^﹣1．

该反应进行的最快的是（）

同类题3

从方框中选择恰当的句子补全对话。

A. We went there by car. B. When did you come back?

C. What did you do in Beijing? D. I went to Beijing with my parents.

E. We went shopping at Wangfujing Street.

A:Where did you go last summer holiday?

B:____

A:Did you go there by train?

B:No. My father bought a new car. ____

A:Wow! That's cool. ____

B:We climbed the Great Wall. And we took many pictures.

A:What else did you do?

B:____ And we bought many nice presents for our friends.

A:____

B:On July 25th.

同类题4

通电螺线管附近小磁针静止时，N极指向如图所示，则螺线管的a端是　 ____　极，电源的 ____　端是正极，增大电源电压小磁针的指向 ____（选填“改变”或“不改变”）．

同类题5

玉米体细胞中有20条染色体，经两次分裂后，形成的子细胞所含有的染色体数目是

小学学科试题库

初中学科试题库

高中学科试题库