前列腺增生病人最初出现的症状是
A．尿频
B．排尿困难
C．尿潴留
D．血尿
E．肾积水
参考答案：A
You must follow the directions exactly, and if you should become_______ , you must take the time to go back again and read them over.
A．confused
B．to be confused
C．to confuse
D．confusing
医院感染管理专职人员参加预防、控制医院感染继续教育课程和学术交流活动每年学时不少于
A．5学时B．6学时C．8学时D．15学时E．20学时
