问题
单项选择题
______是指统计指标的形成都必须经过从个别到一般的过程,即通过对各个总体单位数量特征的综合或数量差异的抽象,以体现出统计总体的综合数量特征。
A.大量性
B.可量性
C.具体性
D.综合性
答案
参考答案:D
______是指统计指标的形成都必须经过从个别到一般的过程,即通过对各个总体单位数量特征的综合或数量差异的抽象,以体现出统计总体的综合数量特征。
A.大量性
B.可量性
C.具体性
D.综合性
参考答案:D
完形填空 | |||
The world of out-of-doors is full of secrets. And they are so interesting that quite a lot of people are busy studying them. All around us are birds, animals, trees and flowers. The facts about how they 1 and grow are as interesting as anything could be. Do you know that one of the great Presidents of the USA spent hours and hours 2 birds? A businessman who lives near New York city became so 3 in insects that he began to collect them. He now has more than one thousand different kinds carefully 4 in glass boxes. Come then with me, and I will help you find some of nature's secrets. Let us go 5 through the woods and fields. Here we shall find now a rabbit tells the other rabbits that there is danger. We shall 6 a mother bear and her young ones as they look for 7 and get ready for winter sleep. We shall watch bees dancing in the air to let other bees know 8 they can find food. I will show you many other interesting things, but the thing that I can 9 you is to keep your eyes and ears 10 when you go out of doors. Nature tells her secrets only to people who look and listen carefully. | |||
( )1. A. bear ( )2. A. studying ( )3. A. friendly ( )4. A. locked ( )5. A. near ( )6. A. hear ( )7. A. food ( )8. A. how ( )9. A. make ( )10.A. closed | B. live B. eating B. carefully B. kept B. quickly B. follow B. fruit B. why B. pass B. open | C. speak C. learning C. busy C. put C. quietly C. catch C. vegetables C. where C. give C. safe | D. fly D. finding D. interested D. filled D. politely D. help D. water D. when D. teach D. clean |