急性脓毒性咽炎可引起的并发症包括（）。
A.急性肾炎
B.风湿热
C.败血症
D.肺炎
E.鼻窦炎
参考答案：A, B, C, D
—Why did Mr Smith _____ your place to give us a talk, Mr White?
—______ I had a bad cold.
A．keep;Because
B．keep;Because of
C．take ;Because
D．take;Because of
UPS负载量指示有（）个灯。
A.2
B.3
C.4
D.5
