我国历史上由政府组织编写的第一部方剂著作（）。
A.《五十二病方》
B.《黄帝内经》
C.《伤寒杂病论》
D.《太平圣惠方》
E.《普济方》
参考答案：D
He told me that he ______________a cold for three days. [ ]
A. has caught
B. had caught
C. has had
D. had had
测量油的闪点方法有（）
A.弹筒法
B.开口杯法
C.点滴法
D.闭口杯法
