问题 单项选择题

整车运输费、检验人员工资等属于()。

A.半变动成本

B.阶梯式成本

C.延期变动成本

D.曲线成本

答案

参考答案:B

解析:混合成本可进一步分为:①半变动式成本,是指在初始的基础上随产量呈正比例增长的成本,例如电费和电话费等公用事业费、燃料费、维修费等;②阶梯式成本,又称半固定式成本,是指总额随业务量呈阶梯式增长的成本,例如整车运输费、检验人员工资等;③延期变动成本,是指在一定业务量范围内总额保持稳定,超过特定业务量则开始随业务量比例增长的成本,例如在正常业务量情况下给员工支付固定月工资,当业务量超过正常水平后则需要支付加班费,这种人工成本就属于延期变动成本;④曲线成本,是指总额随产量增长而呈曲线增长的成本,例如累进计件工资、各种违约金、罚金等。

单项选择题
阅读理解

Most people think that the older you get, the harder it is to learn a new language. That is, they believe that children learn more easily and efficiently than adults. Thus, at some point in our lives, maybe around age 12 or 13, we lose the ability to learn languages well. Is this idea a fact or myth(悬念)?

Is it true that children learn a foreign language more efficiently than adults? On the contrary, research studies suggest that the opposite may be true. One report, on 2,000 Danish children studying Swedish, concluded that the teenagers learned more, in less time, than the younger children. Another report, on Americans learning Russian, showed a direct improvement of ability over the age range tested; that is, the ability to learn increased as the age increased, from childhood to adulthood.

There are several possible explanations for these findings. For one thing, adults know more about the world and therefore are able to understand meanings more easily than children. Moreover, adults can use logical(逻辑的) thinking to help themselves see patterns in the language. Finally, adults have more self-discipline (self-control) than children.

All in all, it seems that the common idea that children are better language learners than adults may not be a fact, but a myth.

小题1:The main idea of the passage is that         .

A.teenagers are more difficult to teach

B.Danish teenagers can learn Swedish faster than younger children

C.adults are more logical than children

D.the ability to learn languages increases with age小题2: If most people’s idea of learning languages is true, people may lose ability to learn languages well         .

A.at an early age

B.when they reach their twenties

C.at an old age

D.after they become young men小题3:According to the passage, teenagers can learn a foreign language __________ than younger children.

A.harder

B.more efficiently

C.more slowly

D.more carefully小题4:The reason why adults understand meanings more easily than children is that         .

A.adults have more self-discipline

B.adults like to play more than children

C.adults have more knowledge than children

D.adults accept new things more easily than children小题5:The explanation for older student’s better achievement not mentioned in the above passage is that       .

A.adults know more about the world.

B.adults can use logical thinking

C.adults have more self-discipline.

D.adults can read better.