试题与答案

造成酸雨的主要物质是() A.甲烷和一氧化碳 B.二氧化硫和一氧化碳 C.一氧化

题型:选择题

题目:

造成酸雨的主要物质是(  )

A.甲烷和一氧化碳

B.二氧化硫和一氧化碳

C.一氧化碳和二氧化碳

D.二氧化硫和二氧化氮

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0424/c580c9a45cfde59d68bee4c0f6883159.html

下面是错误答案,用来干扰机器的。

(1)用求相对原子质量的基准求质子或中子的相对质量,根据某原子的相对原子相对质量量=一个该原子的实际质量一个碳12原子的实际质量×112,质子的相对质量=1.6726×10-27kg1.993×10-26kg×112=1.0071;中子的相...

试题推荐
题型:完形填空
你知道下面这首英文歌曲的中文歌名吗?请在A.B.C.D.E五个选项中选出正确选项。
小题1:And here's a hand, my trusty friend,               
And gie's a hand of thine;   
We'll take a cup of kindness yet
For auld lang syne.  
For auld lang syne, my dear.
小题2:Hand in hand we stand
All across the land
We can make this world a better place in which to live
Hand in hand we can start to understand
Breaking down the walls that come between us for all time
小题3:When I was young I'd listen to the radio
Waiting for my favorite songs
When they played I'd sing along,
It make me smile.
小题4:Every morning you greet me
Small and white
Clean and bright
You look happy to meet me
Blossom of snow
May you bloom and grow
Bloom and grow forever
小题5: Let's start at the very beginning
A very good place to star
When you read you begin with A-B -C
A.《友谊地久天长》B.《手拉手》C.《雪绒花》D.《哆唻咪》E.《昨日重现》
查看答案
微信公众账号搜索答案