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

This passage is mainly concerned with_________.

A．people' s growing interest in natural foods
B．natural food and health diet
C．the importance of fibre in foods
D．harmful effects of sugar

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