下列何种微生物培养时会产生β-溶血环现象( )
A．肺炎链球菌B．军团菌C．乙型溶血性链球菌D．肺炎支原体E．肺炎衣原体
参考答案：C
下列家庭小实验制得的分散系能发生丁达尔效应的是
A．硫酸铜
B．淀粉
C．蔗糖
D．碘
—Do you know __________ in China tomorrow?
—In the morning.
A．when she arrives
B．when does she arrive
C．when she will arrive
D．when will she arrive
