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问题 单项选择题

经济社会活动各个组成部分之间或者与其他相关活动之间造成生态影响的相互叠加称为( )。

A．有利生态影响
B．累积生态影响
C．间接生态影响
D．不利生态影响

答案

参考答案：B

单项选择题

（）是将测验分数的转换关系用图形表示出来，从而可以很直观地看出被试者在各个分测验分数分布中的相对位置。

A.条形图 

B.直方图 

C.剖面图 

D.散点图
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填空题
Fill in the blanks with the right form of the proper words in the box. Each word should be used only once.
take, million, cook, science, south, grow, many, probably, know, nothing
       People all over the world eat rice. 1.              of people in Asia, Africa and South America eat it every
day of their lives. Some people eat almost 2.              but rice. 
       Rice is a kind of grass. There are 3.             than 7,000 kinds of rice. Farmers grow rice in many
countries, even in the 4.              part of the United States and in eastern Australia. 
       No one really 5.              where rice came from. Some 6.              think that it started to grow in two
places. They think that one kind of rice grew in southern Asia thousands of years ago. Someone in China
wrote about it almost 5,000 years ago. Another kind 7.              grew in West Africa. Other scientists think
that rice came from India, and Indian travelers 8.              it to other parts of the world.
       There are two main ways 9.              rice. Most rice grows in west soil. People in many countries do all
of the work of growing rice by hand. This is the same way farmers worked hundreds of years ago. In some
countries, people now use machines on their rice farms.
        People use every part of the rice plant. They make animal feed and rice oil from it. They burn dry rice
plants for 10.             .
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