某患儿以自汗为主，汗出遍身，伴神疲纳差，舌淡苔白脉缓，治疗此证首选方为
A．补中益气汤B．桂枝汤C．牡蛎散D．玉屏风散E．生脉散
参考答案：B
Mike is said Chinese in a Chinese university. Do you know where he studied? [ ]
A. to have studied
B. to study
C. to be studying
D. to have been studying
