水中细菌,有机物和还原性物质,氯化消毒时所消耗的氯量为()。 A.加氯量  B.有效

题型:单项选择题

问题:

水中细菌,有机物和还原性物质,氯化消毒时所消耗的氯量为()。

A.加氯量 

B.有效氯 

C.需氯量 

D.余氯量 

E.以上都不是

考点:公卫执业医师公卫执业医师
题型:单项选择题

田纳西河流域管理局坚持的“薄利取胜”的方针是指[ ]

A.将廉价的电力供应给当地企业使用,促进整个流域经济的发展

B.用很低的投入治理水患

C.利用廉价的劳动力进行流域治理与开发

D.流域内的工农业产品薄利多销

题型:单项选择题

人员任用的方法包括( )。

A.委任

B.选任

C.推荐

D.聘任

E.考任

题型:单项选择题

战略业务单位具有的特点之一是它有()来负责战略计划、利润业绩、并且有能力控制影响利润的大多数因素。

A、自己的竞争者

B、专职业务经理

C、资源供应者

D、有决定价格的权力

题型:单项选择题

Children are a relatively modem invention. Until a few hundred years ago they look like adult, wearing grown-up clothes and grown-up expressions, performing grown-up tasks. Children did not exist because the family as we know it had not evolved.
Children today not only exist; they have taken over in no place more than in America, and at no time more than now. It is always Kids Country here. Our civilization is child-centered, child-obsessed. A kid’s body is our physical ideal. In Kids Country we do not permit middle-aged. Thirty is promoted over 50, but 30 knows that soon his time to be overtaken will come.
We are the first society in which parents expect to learn from their children. Such a topsy-turvy situation has come to abort at least in part because, unlike the rest of the world, ours is an immigrant society, and for immigrants the only hope is in the kids. In the Old Country, that is, Europe, hope was in the father, and how much wealth he could accumulate and pass along to his children. In the growth pattern of America and its ever- expanding frontier, the young man was ever advised to GO WEST; the father was ever inheriting from his son. Kids Country may be the inevitable result.
Kids Country is not at all bad. America is the greatest country in the world to grow up in because it is Kids Country. We not only wear kids clothes and eat kids food; we dream kids dreams and make them come tree. It was, after all, a boys’ game to go to the moon.
If in the old days children did not exist, it seems equally true today that adults, as a class, have begun to disappear, condemning all of us to remain boys and girls forever, jogging and doing push-ups against eternity.

The sentence "Children are a relatively modem invention" underlined in Paragraph 1 means that children ______ .

A.were exactly the same as adults a few hundred years ago

B.did not exist at that time because there were no families yet

C.were not different from adults in physical appearance

D.were not different from adults

题型:单项选择题

培根说:“灰心生失望,失望生动摇,动摇生失败”。这就是说()

A.物质对意识具有决定作用

B.意识对物质具有反作用

C.正确的意识推动事物发展

D.错误意识对事物发展起阻碍作用

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