证见神识昏蒙，时明时昧。时有谵语，舌红苔腻，脉濡滑数宜用（）
A.安宫牛黄丸
B.清宫汤
C.至宝丹
D.菖蒲郁金汤
参考答案：D
I got an email __ __ my best friend _ _ seven o'clock.[ ]
A. to; at
B. from; to
C. from; at
什么叫空白试验？
