测定饮用水pH值的标准方法为
A.
B.重量法
C.pH试纸法
D.滴定法
E.比色法
参考答案：A
—Professor Wang _____ to give us a talk next week.
—Really? That's good news.[ ]
A. will invite
B. is going to invite
C. will be invited
D. has invited
门静脉高压症的临床表现是
A．肝大、呕血、腹水
B．肝大、腹水、黄疸
C．脾大、肝掌、蜘蛛痣
D．肝大、肝掌、蜘蛛痣
E．脾大、呕血、腹水
