单项选择题

According to the passage, dairies are ______.

A．experimenting with the use of paper bottles
B．giving up the use of glass bottles
C．increasing the use of plastic bottles
D．re-using their paper containers

<上一题目录下一题>

热门试题

单项选择题

Some environmentalists think that ______.

A．plastic packaging should be made more convenient
B．no alternative can be found to plastic packaging
C．too much plastic is wasted
D．shops should stop using plastic containers