在一定温度下的定容密闭容器中,当物质的下列物理量不再变化时,不能说明反应 A(s

题型:选择题

问题:

在一定温度下的定容密闭容器中,当物质的下列物理量不再变化时,不能说明反应

A(s)+2B(g)C(g)+D(g)已达平衡状态的是

A.混合气体的压强

B.混合气体的密度

C.B的物质的量浓度

D.气体的平均相对分子质量

考点:化学平衡的有关计算影响化学平衡的因素达到化学平衡的标志化学平衡常数
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根据外汇管理法律制度的规定,有下列行为之一,应由外汇管理机关处违法外汇金额30%以上等值以下罚款的是()。

A.违反规定将外汇汇入境内,情节严重的

B.违反规定,擅自改变结汇资金用途的,情节严重的

C.违反规定,私自改变外汇用途,情节严重的

D.倒买倒卖外汇,情节严重的

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最有利于肝扫查的呼吸阶段是()

A.深呼气后屏气

B.深吸气后屏气

C.正常呼吸

D.正常呼气末屏气

E.正常吸气末屏气

题型:选择题

I live in a very over populated beach area in the Los Angeles, and I love the beautiful scenery! But because of many people, lots of things are easy to be out of order, and sometimes it’s also easy to lose your cool. Today was a day I wish I did not get out of bed. I mean that if I did not have to wake up and deal with all the things that I deal with on a daily basis, it would have been wonderful.

I had a cup of coffee this morning and that was my meal for breakfast, not healthy I know. Anyway, my stomach was sounding like a truck. So, I jumped in my car and decided to buy some food.

I was in line at Taco Bell (一家墨西哥速食店) and the line was like a long snake! Finally I got to place my order, but a young girl in nice clothes pulled in and was stuck in such a way that unless I moved for her, she wouldn’t be able to get out. So I backed up and waved her into my place in the front of the line.

To my surprise, this young girl did not say thanks. I was cool with it because I thought that I had done something nice for a change. After the girl received her food and pulled away, I pulled into the ordering spot, not mad, but hungry, and the employee said, “Hi, that girl just paid for your food.”

That food was the most satisfying nourishment (营养品) my body had ever taken! If just by chance you are that person who bought my food, I should say “Thank you!”

小题1:The underlined part in the first paragraph probably means “_____”.

A.be friendly to others

B.become angry

C.get warmer

D.remain calm小题2:What happened to the author according to the passage?

A.He remained lying in bed all the morning.

B.He didn’t feel well after drinking a cup of coffee.

C.He made room for a girl who jumped the queue.

D.He had a quarrel with a girl who didn’t stand in line.小题3:How did the young girl show her thanks to the author?

A.She got out of her car and said thanks.

B.She drove away with her own food.

C.She received her food and waved goodbye.

D.She paid for the author’s food without him knowing.小题4:The best title for the passage might be _____.

A.Kindness is spreading

B.Being patient wins respect

C.Being calm is important in accidents

D.Being polite can change the world

题型:选择题

不能单独炼焦的煤是()。

A、气煤

B、褐煤

C、肥煤

D、焦煤

题型:选择题

“世界不是既成的事物的集合体,而是过程的集合体”。这是一种()

A.唯物辩证法的观点

B.形而上学的观点

C.相对主义的观点

D.唯心主义的观点

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