单项选择题

We need to know something about the structure and operation of science because ______.

A．it is not easy to understand the things that excite and frustrate scientists
B．Science affects almost every aspect of our life
C．Scientists live in a specific subculture
D．It is easier to understand general characteristics of science

<上一题目录下一题>

热门试题

单项选择题

According to the passage, scientific subculture means ______.

A．cultural groups that are formed by scientists
B．people whose knowledge of science is very limited
C．the scientific community
D．people who make good contribution to science

单项选择题

The boss discharged the cook for his incompetence. The word discharged here means ______.

A．laid down
B．laid off
C．laid away
D．laid up