鲁班游泳池在泳池水的净化杀菌中,主要用的试剂是次氯酸钠(NaClO)溶液与极少量

题型:问答题

问题:

鲁班游泳池在泳池水的净化杀菌中,主要用的试剂是次氯酸钠(NaClO)溶液与极少量的盐酸.

(1)次氯酸钠(NaClO)的式量为:______.

从化学角度分析:起杀菌消毒作用的有效成分是次氯酸(HClO),次氯酸的产生可以是:次氯酸钠与盐酸反应,生成氯化钠与次氯酸.

(2)试写出该反应的化学方程式:______.

(3)含有14.9克的次氯酸钠的溶液,需要36.5%的盐酸______克恰好反应.

考点:化学反应方程式的计算化学反应方程式的书写文字表达式相对分子质量
题型:问答题

下列各项中,不符合资产会计要素定义的是()。

A.发出商品

B.委托加工物资

C.待处理财产损失

D.尚待加工的半成品

题型:问答题

阅读理解。

                                                                   Stopping Smoking

    The Shanghai Regulations on Smoking Control in Public Places (上海市公共场所控烟条例) took

effect (作用) on March 1, 2010. Smoking have been banned (禁止) in the city's kindergartens, schools,

hospitals, stadiums, public service areas, shopping malls, libraries, theaters and museums, among other

places, and violators will be fined. 

     But the public and media are not optimistic (乐观) about the implementation (实施) of the regulations.

     To make the regulations really effective, basic power comes from passive smokers. The aim of the

regulations is to protect their health rights, and passive smokers in turn, it is hoped, will take action to

safeguard those rights by applying the regulations.

     But few non-smokers are ready to stand up to fight against smoking because they are not confident

about stopping the smokers. They understand the power of individuals (个人) is limited.

     If they can form nongovernmental organizations, the situation will change. I believe many individuals,

including non-smokers and passive smokers, will actively take part in organized fight against smoking.

     To this end, when legal powers do not cover all public places, nongovernmental organizations will be

an effective power in fighting against smoking.

1. The Shanghai Regulations on Smoking Control in Public Places ______. [ ]

A. has not taken effect

B. has taken effect for nearly two months

C. doesn't take effect in the bookshop

D. encourages people to smoke

2. Many people in Shanghai think that the Regulations ______.[ ]

A. are useless

B. will not do well

C. are not reasonable

D. are for rich people

3. What does passive smokers mean? [ ]

A. 曾经吸烟者

B. 被动吸烟者

C. 年老吸烟者

D. 吸烟传递者

4. Why do so many non-smokers not safeguard their rights? [ ]

A. Because they like to smell cigarette.

B. Because they don't have the rights to stop other people smoking.

C. Because they don't know the regulations.

D. Because they think the power of each person is small.

5. ______ will play an important role in fighting against smoking. [ ]

A. Teachers and students

B. Mothers and children

C. The public and media

D. Nongovernmental organizations

题型:问答题

营分证的病人可出现()

A.心烦口渴

B.不寐

C.两者均有

D.两者均无

题型:问答题

头痛医头,脚痛医脚。”这种观点或做法()

A、符合辩证思维的方法

B、是正确的,做到具体问题具体分析

C、违背辩证思维方法

D、是错误的,违背了唯物主义观点

题型:问答题

个人循环贷款额度授信期限最长为()年。

A.1

B.2

C.3

D.5

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