---- You shouldn’t have gone there alone last night.

---- But I ______, because Xiao Wang went there, too.

A．didn’t

B．had to

C．did

D．should

导致风湿热的病原菌是

A．金黄色葡萄球菌

B．肺炎双球菌

C．A组乙型溶血性链球菌

D．流感杆菌

E．大肠杆菌