驾驶货车在雨雾天气下行驶,你应该()
A.加速超越右侧车辆
B.保持比晴天更大的横向、纵向的安全间距
C.开启前照灯、示廓灯和后位灯
D.低速行驶
参考答案:B, C, D
—Do you like black?
—No, I _____ like it _____.[ ]
A. don't; a lot
B. doesn't; very much
C. don't; at all
D. doesn't; at all
卫生人力资源研究主要研究卫生人力的数量()和()。