自汗是指（）
A.入睡汗出，醒后汗止
B.汗出不止，活动更甚
C.热汗不止
D.战栗汗出
E.汗出淋漓，清稀而冷
参考答案：B
There are ______ books in our school library than in yours. [ ]
A. much more
B. a lot of more
C. a lot more
D. many more
保险作为正式行业来经营，始于______世纪。( )
A．12 B．13 C．14 D．15
