“机不可失,时不再来”所表达的意思是A.时间是有限的而井非无限的 B.时间一旦过去,

题型:多项选择题

问题:

“机不可失,时不再来”所表达的意思是

A.时间是有限的而井非无限的

B.时间一旦过去,以后就没有时间了

C.并非以后没有时间,而是作为特定物质形态之存在形式的特定的时间不会绝对重复的出现

D.时间与物质是不可分的

考点:普通考研考研政治考研政治95
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长为L粗细均匀的圆柱体,其轴线与直角坐标系x轴重合,底面过原点且与yOz平面平行,如图所示,圆柱体在yOz平面内质量均匀分布,在x方向密度均匀增加,则圆柱体重心位置坐标(xc,yc,zc)为(  )

A.yc=0,,zc=0,xc

B.yc=0,,zc=0,xc=

C.yc=0,,zc=0,xc

D.无法判断

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一只白色公羊与一只白色母羊交配,生了一只黑色小羊,如果用R和r来表示,白色公羊、白色母羊和黑色小羊的基因组成是

(  )

A.Rr、Rr  RR

B.Rr、Rr、rr

C.RR、Rr、rr

D.Rr、Rr、Rr

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诚实信用原则

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Many immigrants to the United States find the decision to seek better lives for their families in America can have an unexpected and tragic consequence. Deep differences with their children develop over language and culture.
"Many immigrants arrive here without much education. Their kids soon gain language skills and also street marts on how to live in America, leaving the parents at a disadvantage, " Ileana, Roses, pastor of a Methodist church group operating in Virginia, said.
"Not only that but they find they cannot relate to children who quickly absorb American culture, " she said.
According to the US Census Bureau, the number of foreign born or first generation Americans reached 55 million last year, a record one in five of the total population.
A government survey of 922 immigrants in 2000 found that nearly 40 percent of those who had been in the United States for more than 15 years would still like to take English classes if they had the time.
Two thirds of low income households depended on their children for translation.
Psychologists and sociologists say parents can lose their position of authority in a family as a result and the effects of that can be far-reaching.
Children exposed to American pop culture that glorifies youth and sexuality often rebel when their parents try to impose the conservative values they brought with them.
"Americanization erodes all important aspects of parenting, " said Richard Weissbourd, who teaches education at Harvard University.
"I feel a part of me is dying with my children. They don’t listen to my music. I have to play it on Sunday morning when they are not around, " said an immigrant.

Which of the following is true according to the passage

A. All the immigrants had expected the troubles they would meet before they went to the US.
B. Two thirds of immigrant families are low income households.
C. American culture shows a spirit against conservative social and cultural values.
D. American pop culture puts the immigrant families at a disadvantage.

题型:多项选择题

宽带接入技术中,采用专线上网时,用户IP地址()。

A、为静态

B、为动态

C、不固定

D、不确定

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