【单选题】Why did the person ask two glasses of beer instead of one big glass?
A.
Because he didn't like drink alone.
B.
Because be and his friend drank them together.
C.
Because he and the beer woman drank them together.
【单选题】下列化合物中,不能与三氯化铁反应显紫色的是( )
【单选题】不能与三氯化铁发生显色反应的化合物是:( )
【简答题】毕达哥拉斯提出()是一切万物的本质和本源。
【多选题】多选题:目前,工业上醋酸的生产方法主要有( )。