胸中之气是()A.元气 B.宗气 C.营气 D.卫气 E.肺气

债务人或者第三人将其动产移交债权人占有，将该动产作为债权的担保是（）

A抵押

B动产质押

C权利质押

D留置

t℃时CuSO₄的溶解度是S g，其饱和溶液密度dg．cm^-3、物质的量浓度为c mol．L^-1．向足量饱和溶液中加入m g无水CuSO₄或蒸发掉n g水后恢复t℃，均能获得W g胆矾晶体，下列关系式正确的是 [ ]

A、

B、

C、

D、

I had the meanest mother in the world. While other kids ate candy for breakfast, I had to have cereal, eggs and toast. Others had cakes and candy for lunch, while we had to eat a sandwich. As you can guess, my supper was different from the other kids’. But at least I was not alone in my suffering. My sister and two brothers had the same mean mother as I did.

My mother insisted on knowing where we were at all times. She had to know who our friends were and what we were doing. We had to wear clean clothes every day. Other kids always wore their clothes for days. We reached the height of disgrace(耻辱) because she made our clothes herself, just to save money.

The worst is yet to come. We had to be in bed by 9:00 each night and up at 7:45 the next morning. So while my friends slept, my mother actually had the courage to break Child Labor Law. She made us work. I believed she lay awake all night thinking up mean things to do to us. Through the years, our friends’ report cards had beautiful colors on them, black for passing, red for failing. My mother, however, would only be satisfied with black marks. None of us was allowed the pleasure of being a dropout(退学者).

She forced us to grow up into educated and honest adults. Using this as a background, I’m now trying to bring up my three children. I’m filled with pride when my children think I am mean because now I thank God every day for giving me the meanest mother in the world.

小题1:From the passage we can learn that the writer’s mother was __________.

A．not generous at all

B．very strict with her children

C．very mean with money matters

D．very cruel to her children小题2:Which of the following things did the writer hate to do most?                        

A．Eating differently from other kids.

B．Wearing clean clothes made by mother .

C．Going to bed early and getting up early .

D．Letting mother know where they were .小题3:It can be inferred from the passage that _____.

A．the writer worked hard and usually got good grades in studies

B．mother was punished for breaking the Labor Law

C．all the other kids studied better than the writer

D．the writer’s family lived a miserable life小题4:Which of the following statements is Not true according to the passage ?

A．Mother practised economy in running her home .

B．The writer is very thankful for her mother .

C．The writer is strict with her children when bringing them up .

D．The wrier has a deep hatred for her mother .小题5:The passage was written in a way of _________ tone.

A．humorous

B．hateful

C．ridiculous

D．critical

我国允许用作甜味剂的是（）

A．苯甲酸、山梨酸

B．叔丁基羟基茴香醚、没食子酸丙酯

C．硝酸盐、亚硝酸盐

D．硫磺、亚硫酸钠

E．甘草、甜叶菊苷

乙酰丙酮分光光度法测定水中甲醛时，对于清洁地表水、受污染的地表水和工业废水，测定前水样的预处理过程有什么不同？