某化工厂工业废水中含H2SO4的质量分数为2%,采用边排放边中和的方法将它处理至

题型:选择题

问题:

某化工厂工业废水中含H2SO4的质量分数为2%,采用边排放边中和的方法将它处理至基本呈中性,处理方法如下图所示。若处理后废水pH=7,则2% NaOH溶液的流量为()

                

A.0.00816 m3·s-1

B.0.0100 m3·s-1

C.0.016 m3·s-1

D.0.0200 m3·s-1

考点:单质硫金属硫化物二氧化硫三氧化硫
题型:选择题

在列宁领导下,1921年苏联开始实施新经济政策。[ ]

题型:选择题

阅读理解

     In a cold winter, a couple had to move out from the luxury villa because of bankruptcy. The husband

worked day and night to support the family but with no care of his wife. So she thought, "he doesn't love

me anymore, he just cares his business...not me".

     One day, she began to take a bath, he stopped her at the door, "Let me take it first, OK?" "Why not

let me shower first," she asked. "I was tired, sweetie, you take it later, OK?" She was totally depressed.

     On a morose day, she found nothing to do and turned on his computer, a few words blurred her

eyes...it was his diary:

     Today, I was quite sad, she asked me why I was always taking the bath first, and I said to her, I was

exhausted. She was unhappy, in her mind, I treated her not as well as usual, but how can I do? I wasn't

as rich as before! We moved to the small apartment, there was only a shower in such a freezing winter.

But I found that if one person took the shower first, the room could get a litter warm, so every time I

rushed to the bathroom first. I was thinking that, when she took the shower, the room would get warmer,

at least1℃,2℃or 3℃

     Now I can't give her comfortable life, bring her the luxury restaurant, buy expensive dresses for her,

but at least, I can give her 1℃love.

1. Why was the husband always taking the bath first?

A. Because he was tired from work.

B. Because he didn't love her anymore.

C. Because he wanted to get the bathroom warmer.

D. Because he treated his wife not as well as usual.

2. What does the underlined word "bankruptcy" in the first paragraph probably mean?

A. crash

B. moving

C. diseases

D. failure

3. The best title of the passage may be ______.

A. A trouble

B. 1℃love

C. Husband and wife

D. A romantic love story

题型:选择题

基金清算小组成员由下列哪些人员组成:()

A.基金发起人、管理人、托管人

B.具有从事证券法律业务资格的律师

C.基金持有人

D.具有从事证券相关业务资格的注册会计师

E.中国证监会指定的人员

题型:选择题

备案号()。

A.GD-98-23757

B.983057

C.C22044800205

D.0209576

题型:选择题

硫酸铜溶液的溶质是(),碘酒的溶剂是()。

更多题库