氮氧化合物对环境的损害作用极大．下列环境问题中氮氧化合物不是“重要成员”的是_刷题宝

题干

氮氧化合物对环境的损害作用极大．下列环境问题中氮氧化合物不是“重要成员”的是（）

A：酸雨

B：光化学烟雾

C：臭氧空洞

D：温室效应

上一题下一题 0.0难度选择题更新时间:2018-08-11 03:50:31

答案(点此获取答案解析）

D

同类题1

补全对话

A：Hi，Vera．How was your holiday?

B：It was great．

A：Where did you go?

B：____

A：Really?Wow!What did you do there?

B：Well，I visited a lot of museums．

A：Oh，how were they?

B：They were really interesting．____

A：Did you go shopping?

B：Yes，I did．

A： ____

B：Oh，they were very expensive．

A：How were the people?____

B：Yes．The people were really friendly．My parents have some Japanese friends，and we had dinner in their houses．

A：____

B：It was delicious．I love Japanese food!

A. Did you meet any Japanese people?

B.How were the clothes?

C. I went to Tokyo with my family

D . How was the food?

E.But they were also very crowed.

同类题2

灯泡L₁标有“9V 6W”的字样，灯泡L₂标有“6V 3W”的字样，如果把它们串联在12V的同一个电路中，两灯相比较，则发光稍亮一些的是（）

同类题3

如图，在平行六面体ABCD﹣A₁B₁C₁D₁中，若 $\vec{A B}$ = $\vec{a}$ ， $\vec{A D}$ = $\vec{b}$ ， $\vec{A A_{1}}$ = $\vec{c}$ ，则 $\vec{D_{1} B}$ =（　　）

同类题4

长方体的体积一定，底面积和高( )。

同类题5

一条公路弯道处是一段圆弧弧AB，点O是这条弧所在圆的圆心，点C是弧AB的中点，OC与AB相交于点D．已知AB=120m，CD=20m，那么这段弯道的半径为（）

小学学科试题库

初中学科试题库

高中学科试题库