非处方药的临床应用
镇咳药
A．萘普生B．阿苯达唑C．右美沙芬D．盐酸异丙嗪E．氢溴酸山莨菪碱
参考答案：C
Can you believe that in _____ a rich country there should be _____ many poor people?
A．such ; such
B．such; so
C．so; so
D．so; such
简述画网络图的基本步骤。
