中級(jí)蒸餾工單項(xiàng)選擇題每日一練(2019.04.24)

A.變稀
B.變稠
C.量減少
D.不確定

A.全回流時(shí)的塔板數(shù)
B.無(wú)回流時(shí)的塔板數(shù)
C.理論塔板數(shù)

A.0-0.1%
B.0.1-0.2%
C.0.2-0.3%
D.1-2%

A.農(nóng)藥
B.生產(chǎn)烈性炸藥
C.做溶劑
D.化肥

A.150
B.135
C.110
D.125