生活在宋、齐之间的我国古代著名的科学家是[ ]
A．贾思勰
B．祖冲之
C．郦道元
D．华佗
答案：B
They will ________ their laptop computer brand in the newspaper, with a 10 percent discount
for the customers. [ ]
A. inform
B. advertise
C. announce
D. publish
治下焦血热之便血、痔血、血痢、崩漏，下列何药最宜（）
A.大蓟
B.小蓟
C.地榆
D.槐花
E.白茅根
