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问题 单项选择题

流行病学与临床医学的区别在于流行病学（）

A.研究疾病病因学

B.不涉及疾病的诊断

C.不开展临床试验

D.不涉及疾病治疗

E.在群体水平上研究疾病现象与健康状况

答案

参考答案：E

单项选择题

Downing Street is fighting fiercely for something it hopes it shall control: its reputation. "[The BBC] is now saying, ’Nobody ever said the prime minister told a lie,’ but that’s exactly what they’re saying," Alastair Campbell, Blair’s director of communications, told Newsweek. "That’s pretty heavy."

A．could

B．would

C．can

D．will
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判断题

风、雨、雪、雾等复杂气象条件，遇前车速度较低时，应开启前照灯，连续鸣喇叭迅速超越。（）
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