0.1000mol/L HAc溶液的pH值应是(Ka＝1.76×10-5)
A．4.30B．2.8C．2.88D．2.9E．3
参考答案：C
______ he is determined to run a business, no one can persuade him to______.
A．If; give away
B．Although; give in
C．Once: give up
D．As long as; give out
在药物不良反应监测中占有极其重要地位的监测方法是( )
A．自愿呈报系统B．重点医院监测C．记录联结D．记录应用E．集中监测系统
