1mol乙烯与氯气发生加成反应,反应完全后再与氯气发生取代反应,整个过程中氯气最多消耗( )
A.3mol
B.4mol
C.5mol
D.6mol
答案:C
Let’s _____ some broccoli.[ ]
A. have
B. has
C. to eat
D. to have
急惊风的“四证”是指:()
A.风、火、积、热
B.风、痰、热、惊
C. 痰、积、热、惊
D.火、痰、热、惊
E.火、痰、风、惊