玄参的加工方法为()
A.发汗
B.阴干
C.置沸水中略烫
D.蒸透心,敞开低温干燥
E.置沸水中煮至透心
参考答案:A
Read and write.在横线上填上合适的单词,使其与画线单词意思相对。
1. The red team loses. The blue team .
2. I'm throwing the ball to Jenny, she's the ball.
3. The building is high. The house is .
4. A rock is . A feather is light.
5. This pen is long. That pencil is .
汞合金成分里哪一种成分起了“氧化”的角色()
A.银
B.锡
C.铜
D.汞
E.锌