芎芷石膏汤的药物组成
A．川芎、石膏
B．白芷、菊花
C．细辛、黄芩
D．藁本、羌活
E．栀子、菊花
参考答案：A,B,D
There are many mistakes in his essay, ______ his failure.
A．which results
B．leading to
C．led to
D．that led to
交接时用于发电机极化指数测量时，兆欧表短路电流不应低于2mA（）
