问题

Many students today suffer from ________ problems, since they are under too much pressure.

A:recreation-related
B:pollution-related
C:stress-related
D:pollution-free

正确答案是：

同类题型

She’s never been to the country before, ___________

In that country about 80percent of the population _____ farm

If you want to go , the library is a good choice.

It will be three days __________he ________back from his home town

I’ve been working for over twenty years and seldom so tired as now .