单选题：What does the writer want to tell us in the fourth paragraph

题目分类：理工类
题目类型：单选题
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题目内容：

What does the writer want to tell us in the fourth paragraph？ A．The is richer than Indi
B．Chickens were made to mature in shorter time and able to produce more egg
C．There are 12 states in the Midwestern
D．is able to increase food production with scientific technique

参考答案：

答案解析：

Yet in one way they are really so fortunate．

Yet in one way they are really so fortunate．A．to some extent B．in the way C．by t

分类：理工类题型：单选题

We can infer from the second paragraph that

We can infer from the second paragraph thatA．some people become addicted to drug

分类：理工类题型：单选题

This passage is mainly about____.

This passage is mainly about____.A．the beginnings of oceanography B．the laying o

分类：理工类题型：单选题

What explanation is given for the use of the subtractive met

What explanation is given for the use of the subtractive method in modern color

分类：理工类题型：单选题

What color filter would absorb red wavelengths？

What color filter would absorb red wavelengths？A．Red B．Magenta C．Cyan D．Yellow

分类：理工类题型：单选题