单项选择题

Food that is rich in organic matter_________.

A．has been nourished by fertilizers
B．contains vegetable matter that has not been consumed
C．has had chemicals and fertilizer added to it
D．contains large quantifies of vitamins

<上一题目录下一题>

热门试题

单项选择题

Which of the following is a reason for people' s growing interest in natural foods

A．They want to return to nature.
B．They want to eat all kinds of foods.
C．Natural foods are very delicious.
D．They are more health conscious.

单项选择题

The passage tells us that_________.

A．sugar is bad for the health
B．the use of sugar is habit forming
C．people need sugar to give them energy
D．sugar provides us with nothing useful