我市前段时间雾霾现象比较严重。形成雾霾天气的是空气中PM2.5含量

我市前段时间雾霾现象比较严重。形成雾霾天气的是空气中PM2.5含量的增加,PM2.5指的是

ASO2           B.可吸入颗粒物            CNO2            DCO

答案

B

相关题目

下列描写属于气候特点的是 A.冬暖夏凉            B.
下列描写属于气候特点的是 A.冬暖夏凉            B.晴转多云             C.阳光灿烂               D.风雨交加
关于布朗运动,下列说法正确的是  ▲  . A.布朗运动就是
关于布朗运动,下列说法正确的是  ▲  . A.布朗运动就是液体分子的无规则运动 B.布朗运动就是悬浮微粒的固体分子的无规则运动 C.气体分子的
在微博中,一些公众人物“语不惊人死不休”,甚至与网友
在微博中,一些公众人物“语不惊人死不休”,甚至与网友对骂。在信息高速传播的新媒体时代,公民行使权利   A.应做到权利和义务相统一    B.
       me the truth, or I am no going to leave the room. A. Telling   
       me the truth, or I am no going to leave the room. A. Telling      B. To tell       C. If you don't tell      D. Tell
---- Can I borrow your car? ---- Sorry. My car __________ at the garage. is bei
---- Can I borrow your car? ---- Sorry. My car __________ at the garage. is being repaired  B. is repaired                       C. will be repaired       D. has been repai
 —  Have you finished reading Jane Eyre? — Not yet. There _________five p
 —  Have you finished reading Jane Eyre? — Not yet. There _________five pages left. A. are                        B. were C. have been                
阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中
阅读下面短文,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。    It was past 10:00pm. I was busy with my schoolwork though I was  1
SECTION C(25 points) Directions: Write an English composition in over 120 words
SECTION C(25 points) Directions: Write an English composition in over 120 words according to the instructions given below in Chinese. 假定你是某外国语学校高三年级2班的学习委员,

最新题目