3.83636…用简便为( ),保留两位小数是( )。

题型:填空题

问题:

3.83636…用简便为(    ),保留两位小数是(    )。

考点:纯小数,带小数,循环小数,循环节,有限小数,无限小数求小数的近似值
题型:填空题

Education is one of the key words of our time. A man, without an education, many of us believe, is an unfortunate victim of unfortunate circumstances deprived of one of the greatest twentieth-century opportunities. Convinced of the importance of education, modern states "invest" in institutions of learning to get back "interest" in the form of a large group of enlightened young men and women who are potential leaders. Education, with its cycles of instruction so carefully worked out, is punctuated by textbooks--those purchasable wells of wisdom--what would civilization be like without its benefits

So much is certain: that we would have doctors and preachers, lawyers and defendants, marriages and births; but our spiritual outlook would be different. We would lay less stress on "facts and figures" and more on a good memory, on applied psychology, and on the capacity of a man to get along with his fellow-citizens. If our educational system were fashioned after its bookless past we would have the most democratic form of "college" imaginable. Among the people whom we like to call savages all knowledge inherited by tradition is shared by all; it is taught to every member of the tribe so that in this respect everybody is equally equipped for life.

It is the ideal condition of the "equal start" which only our most progressive forms of modern education try to reach again. In primitive cultures the obligation to seek and to receive the traditional instruction is binding on all. There are no "illiterates"--if the term can be applied to peoples without a script--while our own compulsory school attendance became law in Germany in 1642, in France in 1806, and in England 1976, and is still non-existent in a number of "civilized" nations. This shows how long it was before we considered it necessary to make sure that all our children could share in the knowledge accumulated by the "happy few" during the past centuries. Education in the wilderness is not a matter of monetary means. All are entitled to an equal start. There is none of the hurry that, in our society, often hampers the full development of a growing personality. There, a child grows up under the ever-present attention of his parents; therefore the jungles and the savages know of no "juvenile delinquency". No necessity of making a living away from home results in neglect of children, and no father is confronted with his inability to "buy" an education for his child.

Notes: juvenile delinquency 青少年犯罪。

According to the text, the author seems to be()

A. against the education in the very early historic times

B. in favor of the educational practice in primitive cultures

C. positive about our present educational instruction

D. quite happy to see an equal start for everyone

题型:填空题

以下措施不能预防产褥期泌尿系感染的是()。

A.待产时尽量导尿排空膀胱

B.大小便后及时清洁外阴

C.及时更换会阴垫

D.产后鼓励产妇多饮水

E.产后至少每4小时排空膀胱一次

题型:填空题

2010年9月10日,某美国投机者在CME卖出10张12月到期的英镑期货合约,每张金额为12.5万英镑,成交价为1.532美元/英镑。11月20日,该投机者以1.526美元/英镑的价格买入合约平仓。在不考虑其它成本因素影响的情况下,该投机者的净收益为()美元。

A.-750

B.-7500

C.750

D.7500

题型:填空题

植物细胞区别于动物细胞的结构特征主要包括()。

A.线粒体

B.质体

C.纤维素为主要结构成分的细胞壁

D.中央大液泡

题型:填空题

原子吸收法测定Cr和Cd的吸收波长分别是()

A.228.8nm,253.7nm

B.228.8nm,357.9nm

C.357.9nm,228.8nm

D.357.9nm,253.7nm

E.357.9nm,283.3nm

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