砂浆的拌合时间不少于()分钟,掺微沫剂的砂浆拌合时间宜为()分钟。
参考答案:15,3~5
---How well did John do in the match?
--Wonderful. I think we can’t have a ______ player in our football team.
A.good
B.well
C.better
D.best
牛蒡子宜采用的炮制方法是()
A.炒黄
B.麸炒
C.炒炭
D.煅炭
E.明煅