不能用于中和硫酸废水的中和剂是()。A.石灰; B.电石渣; C.烟道气; D.苛性

题型:单项选择题

问题:

不能用于中和硫酸废水的中和剂是()。

A.石灰;

B.电石渣;

C.烟道气;

D.苛性碱;

考点:污水处理工考试污水处理高级工考试污水处理高级工考试题库
题型:单项选择题

The year 2009 is the Year of Ox. The ox is a representative of the fanning culture of China. In the farming economy (经济), oxen are the major animals pulling plows (犁).

Of course, the good of oxen is not limited to plowing.  In fact, they are seen as "boats on land" for their ability to carry loads. Besides, the whole body of an ox is full of treasures. Their meat and milk are food full of nutrition, and their skin can be used to make clothes and shoes. With all these qualities, oxen are regarded as generous creatures.

In the past, oxen played an important role in the spiritual life of the Chinese. Even today, oxen still play a special part in some folk activities. For example, some people who1ire in southwest China will cook cattle bone soup and share it among family members when holding the ceremony for children who reach 13. They believe that the cattle bone soup represents the blood relationship among family members. In order to express their love for oxen, people in some other areas will run to shake off diseases on the 16th day of the first month by the lunar calendar (农历), and during their run they will take their oxen along, which indicates they regard the creature as human.

Because of the contribution of oxen in their lives, the Chinese people are very grateful to the animal. In addition, the use of oxen in ceremonies and the thanks people owe to oxen help to develop various traditional customs, which becomes an important part of the folk culture of the Chinese nation.

小题1:The words "boats an land" underlined in Paragraph 2 refer to __

A.animals for taking goods

B.creatures for pulling plows

C.treasures of the folk culture

D.tools in the farming economy小题2:From the third paragraph, we know that __

A.oxen are no more important today than in the past

B.ceremonies are held when people cook cattle bone soup

C.oxen are treated as human in some areas of China

D.people run with oxen to shake off diseases every month小题3:Which of the following helps to develop traditional customs?

A.The special role of oxen in frowning.

B.People's respect and love for oxen.

C.The practical value of an ox's body.

D.The contribution of oxen to the economy.小题4:Why does the author write the text?

A.To stress the importance of oxen in farming.

B.To introduce the Chinese folk culture.

C.To describe how to celebrate the Year of Ox.

D.To explain how to develop agriculture with oxen.

题型:单项选择题

有关升级版“购票信息管理”描述有误的一项是?()

A.增加对金税盘配套报税盘购票管理的支持

B.实现了与综合征管系统(国税)一体化发票发售接口

C.支持新版报税盘退票和金税盘配套报税盘的退票

D.支持发票注销

题型:单项选择题

最适合作为“提取植物叶绿体色素”实验材料的是()

A.番茄果实

B.西瓜皮

C.暗培养的绿豆芽

D.菠菜叶片

题型:单项选择题

产生氢气的工序是()

A、转化工序

B、甲烷化工序

C、变压吸附工序

D、吸收脱碳工序

题型:单项选择题

可变应答器有两项任务。当处于CTC级别时,仅仅用于()。处于ITC级别时,应答器额外提供()。

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