己知NO2与NaOH溶液的反应为3NO2+2NaOH=2NaNO3+NO+H2O

题型:填空题

问题:

己知NO2与NaOH溶液的反应为3NO2+2NaOH=2NaNO3+NO+H2O,而NO、NO2与NaOH溶液的反应为NO2+NO+2NaOH=2NaNO2+H2O,欲用VL某烧碱溶液将含有nmolNO和mmolNO2的混合气全部吸收,则该烧碱溶液的物质的量浓度至少为________。

考点:物质的量
题型:填空题
This year, about 2,300 teenagers from all over the world will spend about 10 months in US homes. At the same time about 1,300 American teenagers will go to other countries to learn new languages and learn the rest of the world.
Here is a 2-way student exchange in action. Fred, 19, spent last year in Germany with George’s family. In turn, George’s son Mike spent a year in Fred’s home in America.
Fred, a lively young man, knew little German when he arrived. But after 2 months of studying, the language became easy for him. School was completely different from what he had expected and it was much harder. Students rose respectfully when the teacher entered the room. They took 14 subjects instead of 6 that were usually taken in the US.
Family life, too, was different. They have to listen to their fathers. All the activities were done with the family rather than individually. Fred found the food to be too simple at first. He also missed having a car.
“Back home, you pick up some friends in a car and go out to have a good time. In Germany, you walk but you soon learn to like it. ”
At the same time, in America, Mike, a friendly German boy, was also forming his own ideas. “I suppose I should criticize American schools. ” he says, “It is far too easy for our level but I have to say that I like it a lot in Germany, we do nothing but study. Here we take part in many other activities. I think that maybe American schools are better in training their citizens. There ought to be some middle ground between the two.
__小题1:____ between American school life and German school life
Items
  ___小题2:_____
German students
Class rules
You don’t have to stand up.
You have to rise to show ___小题3:_ to their teachers
____小题4:
You do their own things individually.
You have to listen to their____小题5:_.
School
It is  very easy .
It is much _____小题6: .
Going out
You pick up some friends in ____小题7:_ .
You ____小题8:_ but soon learn to like it.
School activities
We take part in ____小题9:__other activities.
We do nothing but _小题10:____ .
 
题型:填空题

在第二审案件的裁判中,下列哪一项表述不违反上诉不加刑原则

A.被告人上诉的案件,第二审判决审理后,认为第一审判决认定犯罪事实和适用法律没有错误,但量刑偏轻,遂撤销原判,发回原审法院重审,原审法院重审后对被告人加刑

B.第一审刑事附带民事诉讼判决后,被告人的妻子经被告人同意提出上诉,被害人对附带民事部分也提出上诉,法院第二审判决对被告人加刑

C.被告人上诉的案件,第二审法院在不改变刑期的情况下,将抢夺罪改为抢劫罪

D.第一审判决被告人抢夺罪和故意伤害罪,被告人提出上诉,第二审法院认为第一审判决对抢夺罪量刑偏轻,而对故意伤害罪量刑偏重,故在数罪并罚执行刑期不变的情况下,增加抢夺罪的刑期,减少故意伤害罪的刑期

题型:填空题

下面微生物中作为抗生素的主要产生菌是( )。

A.酵母菌

B.曲霉

C.大肠杆菌

D.链霉菌

题型:填空题

可用治肺虚久咳,肺痨咳嗽的药是

A.紫菀

B.枇杷叶

C.冬虫夏草

D.百部

题型:填空题

A.一般B.同意C.影响D.重要E.安静F.双

南方人______喜欢喝绿茶。

更多题库