我国目前已建的长途光缆采用的光纤主要为（）光纤和G.655光纤。
A.G.652
B.G.653
C.G.655
D.G.656
参考答案：A
After class, we _____ to talk about the film that we saw just now. [ ]
A. go on
B. continued
C. lasted
D. went for
方形脸型可将鼻梁的提亮部适当（），强调脸部立体感。
A、加宽
B、缩短
C、拉长
D、窄细
