马克思认为，货币的基本职能是( )。 A．支付手段 B．流通手段_爱下问搜题

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问题多项选择题

马克思认为，货币的基本职能是( )。

A．支付手段

B．流通手段

C．价值尺度

D．世界货币

E．贮藏手段

答案

参考答案：B,C

解析：货币的职能有：①价值尺度，是货币衡量和表现商品价值大小的职能；②流通手段，是货币在商品流通中充当交换媒介的职能；③贮藏手段，是金属货币流通条件下的金银原始条块的贮藏；④支付手段，当货币作为价值运动的独立形式而进行单方面转移时执行的职能；⑤世界货币，指货币流通越过国界，在世界范围内执行价值尺度、支付手段等职能。

解答题

已知圆C经过点A（-2，0），B（0，2），且圆心C在直线y=x上，又直线l：y=kx+1与圆C相交于P、Q两点．
（1）求圆C的方程；
（2）若

=-2，求实数k的值．

完形填空

Most parents, I suppose, have had the experience of reading a bedtime story to their children. And they must have   11  how difficult it is to write a   12  children’s book. Either the author has aimed too   13 , so that the children can’t follow what is in his (or more often, her) story,   14  the story seems to be talking to the readers.
The best children’s books are   15  very difficult nor very simple, and satisfy both the 16  who hears the story and the adult who   17  it. Unfortunately, there are in fact few books like this,   18  the problem of finding the right bedtime story is not   19  to solve. This may be why many of the books regarded as   20  of children’s literature(文学) were in fact written for   21 . “Alice in wonderland” is perhaps the most obvious of this.
Children, left for themselves, often   22  the worst possible interest in literature. Just leave a child in a bookshop or a   23   and he will more willingly choose the books written in an imaginative way, or have a look at most children’s comics(连环画), full of the stories and jokes which are the objections of teachers and right-thinking parents.
Perhaps we parents should stop   24  to brainwash children into accepting our taste in literature. After all children and adults are so   25  that we parents should not expect that they will enjoy the same books. So I suppose we’ll just have to compromise（妥协） over the bedtime story.

C．understands