计算患病率的分子是
A. 观察期间某病的新发病例数
B. 观察期间某病的现患病例数
C. 观察期间之前某病的患病人数
D. 观察期问某病的暴露人口
E. 以上均不是
Mary had taken pains to ()that her guests had everything they could possibly want.
A. see
B. know
C. feel
D. learn
It suddenly ______ to me that somebody might be able to lend us the money.
A. came
B. turned
C. referred
D. occurred
药品生产中的职业道德要求不包括
A. 保证生产，社会效益与经济效益并重
B. 质量第一，自觉遵守规范
C. 保护环境，保护药品生产者的健康
D. 规范包装，如实宣传
E. 指导用药，做好药学服务
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