不宜与半夏配伍的是()
A.甘草
B.草乌
C.桂枝
D.京三棱
E.藜芦
参考答案:B
Do you often ______ a telephone call to your friends? [ ]
A.make
B.have
C.take
D.buy
红外测试样品需尽可能把游离水驱除干净。含游离水样品的红外谱图中在哪两个波数范围会出现吸收峰?