仅对下丘脑有正反馈作用的是
A．人绒毛膜促性腺激素B．人胎盘生乳素C．雌激素D．孕激素E．前列腺素
参考答案：A
The famous actress became________, and couldn't say a word when asked about her father,
who passed away only last month. [ ]
A. choked
B. frightened
C. swelled
D. squeezed
张女士，30岁，高热，腹泻，诊断为细菌性痢疾，应对其实施
A．昆虫隔离
B．消化道隔离
C．接触隔离
D．严密隔离
E．保护性隔离
