25×(8+4)=25×8+4.______.

题型:解答题

问题:

25×(8+4)=25×8+4.______.

考点:运算定律和简便算法
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一家商店以每包a元的价格进了30包甲种茶叶,又以每包b的价格买进60包乙种茶叶.如果以每包
a+b
2
元的价格卖出这两种茶叶,则卖完后,这家商店(  )
A.赚了B.赔了
C.不赔不赚D.不能确定赔或赚
题型:解答题

关于回旋加速器加速带电粒子所获得的能量,下列说法正确的是[ ]

A.与加速器的半径有关,半径越大,能量越大

B.与加速器的磁场有关,磁场越强,能量越大

C.与加速器的电场有关,电场越强,能量越大

D.与带电粒子的质量和电荷量均有关,荷质比越小,能量越大

题型:解答题

A公司2007年12月1日以1 000万元取得B公司30%的股权,取得投资时被投资单位可辨认净资产的公允价值为3 000万元。A公司能够对B公司施加重大影响,2007年12月 31日,A公司对B公司长期股权投资的;可收回金额为800万元,则A公司2007年12月31日应计提的长期股权投资减值准备为( )万元。

A.200
B.100
C.-100
D.0

题型:解答题

"Congratulations, Mr. Jones, it’s a girl. "

Fatherhood is going to have a different meaning and bring forth a different answer from every man who hears these words. Some feel proud when they receive the news, while others worry, wondering whether they will be good fathers. Although there are some men who like children and may have had considerable experience with them, others do not particularly care for children and spend little time with them. Many fathers and mothers have been planning and looking forward to children for some time. For other couples, pregnancy was an accident that both husband and wife have accepted willingly or unwillingly.

Whatever the reaction to the birth of a child, it is obvious that the change from the role of husband to that of father is a difficult task. Yet, unfortunately, few attempts have been made to educate fathers in this re-socialization process. Although many good books have been written about American mothers, only recently have some books discussed the role of a father.

It is argued by some writers that the transition to the father’s role, although difficult, is not nearly as great as the transition the wife must make to the mother’s role. The mother’s role seems to require a complete transformation of daily routine and adaptation to a new life, on the other hand, the father’s role is less demanding and immediate. However, even though we have mentioned the fact that growing numbers of women are working outside the home, the father is still thought by many as the breadwinner in the household.

It is stated in the passage that()

A. some parents are not prepared to have a child

B. young couples do not like children at all

C. working couples do not have much time to take care of their children

D. many parents look forward to having a boy as their first child

题型:解答题

我国的常规大气污染物有哪些?

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