劳动过程中的有害因素是（）
A.通风换气不良
B.视觉紧张
C.炭疽杆菌
D.微波
E.噪声、振动
参考答案：B
I'd like to tell you the Olympic snowboarding event, ______, was quite exciting. [ ]
A. on which many people watched
B. where many people watched TV
C. which many people watched on TV
D. where many people watched on TV
文学家在作品中记录了大量的人物对话，作品中的这些对话属于（）。
A.口语
B.书面语
C.白话
D.书面口语
