按疼痛性质划分，疼痛得凉则减属于什么证（）
A.实寒症
B.虚寒症
C.实热证
D.虚热证
E.气虚症
参考答案：C
—Have you ever been to Canada?
—Yes, I _____ there last year with my parents. [ ]
A. have been
B. have gone
C. went
D. go
（40+4）×25=[ ]
A．40×25+25
B．40×25+4×25
C．40×25+29
