本病例选用方剂是
A．石苇散
B．八正散
C．膏淋汤
D．无比山药丸
E．知柏地黄丸合二至丸
参考答案：E
为什么氨合成塔内件要保温？
One out of five bridges in the United States is outmoded .
A．narrow
B．obsolete
C．illegal
D．concrete
