夜间行车，驾驶人的视野受限，很难观察到灯光照射区域以外的交通情况，因此要减速行驶。
参考答案：对
Tom wants to know if we can ________ John for the night, since he has lost all his money and can go
nowhere. [ ]
A. put up
B. put off
C. put on
D. put down
因中央空调冷却塔用水污染而导致医院内感染的细菌是（）
A.百日咳鲍特菌
B.流感嗜血杆菌
C.铜绿假单胞菌
D.军团菌
E.鲍曼不动杆菌
