标志重庆理工大学 * * 后复院建校的文件是（） A.“川府函（1982）131号” B.

如果函数y=x²+ax+2在区间（-∞，4]上是减函数，那么实数a的取值范围是______．

Many children first learn the value of money by receiving an allowance. Parents often give their children an amount of money that they may spend as they wish. The purpose is to let the children learn from experience at an early age when financial mistakes are not very costly.

A child may receive an allowance each week or each month. The amount is not so important.  But parents should make clear what the child is expected to pay for with the money.

At first, young children may spend all of their allowance soon after they receive it. If they do this, they will learn the hard way that spending must be done within a budget. Parents should not offer more money until the next allowance is to be given.

Older children may be responsible enough to budget larger costs like those for clothing. The object is to show young people that a budget demands choices between spending and saving.

Many people who have written on the subject say it is not a good idea to pay your child for work around the home. These jobs are a normal part of family life. Paying children to do extra work around the home, however, can be useful. It can even provide an understanding of how a business works.

Allowances give children a chance to experience three things they can do with money. They can share it in the form of gifts or giving it to organizations. They can spend it by buying things they want. Or they can save it.

Saving helps children understand that costly goals require sacrifice: you have to cut costs and plan for the future. Requiring children to save part of their allowance can also open the door to future saving and investing. Many banks offer free savings accounts for young people with small amounts of money.

小题1:The functions of allowances given to children are the following EXCEPT ______.

A．they can save more money for their future business

B．they can give them to charities

C．they may spend them on what they like

D．they can learn to deal with money小题2:The underlined word "sacrifice" in the last paragraph means "_____".

A．牺牲

B．计划

C．选择

D．放弃小题3:What's the main idea of the passage?

A．Children should save part of their allowance.

B．Don’t pay your child for work around the home.

C．Allowance helps teach children early about money.

D． Parents should allow children to spend money as they wish.小题4:How many advantages of saving has the passage mentioned?

A．2

B．3

C．4

D．5小题5:Which of the following is TRUE according to the passage? 

A．Children are advised to buy anything they wish to with the allowance.

B．Parents should offer children more money if they spend all of their allowance soon after they get it.

C．It can be useful to pay children to do extra work around the home.

D．It is unnecessary for the children to save part of the allowance.

简述铣床床身的结构与功用。（以卧式铣床为例）

缺测是指某日（按降水采样日界）降水量大于（）毫米的降水过程全部未采样或样品采集后全部未测量。

A.0.1

B.1.0

C.0.5

D.0.0

关于确定商务谈判代表的入选，甲、乙、丙3位公司老总的意见分别是：
甲：如果不选派李经理，那么不选派王经理。
乙：如果不选派王经理，那么选派李经理。
丙：要么选派李经理，要么选派王经理。
以下诸项中，同时满足甲、乙、丙3人意见的方案是：

A．选派李经理，不选派王经理。
B．选派王经理，不选派李经理。
C．两人都选派。
D．两人都不选派。
E．不存在这样的方案。