进行暴发调查时的首要工作是
A．计算各种罹患率
B．核实诊断
C．形成病因假设并检验假设
D．扑灭疫情
E．制定防制措施
参考答案：B
传统药学是要求
A．三日极量B．二日常用量C．二日极量D．三日常用量E．七日常用量
句子改写。
请按要求变换句型，每空一词。
1. My hair is black.(就划线部分提问).
__________ __________ is your hair?
2. He looks young.(就划线部分提问)
__________ __________ he look like?
3. She has two short arms.(改为否定句)
She __________ __________ two short arms.
4. We are from Cuba. (改为一般疑问句)
__________ __________ from Cuba?
5. His father is fine.(就划线部分提问)
__________ __________ his father?
