根据实际比较基准的不同，市场比较法可分为（）。A.模拟比较分析 B.直接比较分析 C

世界上人口增长速度最快和最慢的大洲分别是

A．亚洲和北美洲

B．非洲和欧洲

C．北美洲和拉丁美洲

D．拉丁美洲和大洋洲

行逆程变压器将行输出电路输出的约(8—10)E的脉冲电压进行升压、整流滤波后，便可得到显像管阳极2万伏高压。

Have you ever noticed advertisements which say “Learn a foreign language in 6 weeks, or your money back! From the first day your pronunciation will be excellent. Just send…” and so on? Of course, it never happens quite like that. The only language that is easy to learn is one’s mother tongue. And think how much practice that gets! Before the Second World War people usually learnt a foreign language in order to read the literature of the country.

Now speaking a foreign language is what most people want. Every year millions of people start learning one. How do they do it? Some people try at home, with books and records of tapes; some use radio or television programs; some use computers and network; others go to evening classes. If they use the language only 2 or 3 times a week, learning it will take a long time, like learning a foreign language at school. A few people try to learn a language fast by studying for 6 or more hours a day. It is clearly easier to learn the language in the country where it is spoken.

However, most people cannot afford this, and for many it is not necessary. They need the language in order to do their work better. For example, scientists and doctors chiefly need to be able to read books and reports in the foreign language. Whether the language is learnt quickly or slowly, it is hard work. Machines and good books will help, but they cannot do the student’s work for him.

小题1:According to some advertisements, you ______ .

A．have to pay your money if you cannot master a foreign language in 6 weeks.

B．needn’t pay you money if you cannot learn a foreign language in 6 weeks

C．must pay your money if you cannot master a foreign language in 6 weeks

D．will be paid much money if you cannot learn a foreign language in 6 weeks小题2:Now most people try to learn a foreign language in order to ______.

A．read the literature of the country

B．read books and reports

C．do their work better

D．go to foreign countries小题3:Learning a foreign language is a hard job ______.

A．only for scientists and doctors

B．only for the students at school

C．for those people at home

D．for most people

设备润滑“五定”、“三级过滤”指的是什么？离心泵的润滑是哪种方法？

在评估划拨土地使用权价格时，要考虑出让土地使用权与划拨土地使用权之间的( )对价格的影响。

A．用途差别
B．区位差别
C．权利差别
D．使用者差别