环链被用于起重机械起升速度较高的场合。（）
A、正确
B、错误
参考答案：B
在同学们的共同努力下，今年我们的及格率有望达到100%．______．
This kind of food ________ in the restaurants today. [ ]
A. served wide
B. can be served wider
C. is served wider
D. is widely served
