定性研究的优点不包括( )。
A．成本低
B．速度快
C．效果好
D．说服力强
参考答案：D
The magazine was started by Becky, ______ I know.
A．as far as
B．as well as
C．as soon as
D．as much as
辛亥革命前，孙中山领导的十次武装起义中，发生在广州的有（）次。
A.5次
B.4次
C.3次
