你喜欢什么种类的博物馆？
_____ _____ _____ museum do you like?
What kind of
An awful traffic accident did, the other day,_________ in the street. [ ]
A. occurred
B. occur
C. occurred to
D. occur to
既供给用户热能又供给用户电能的以煤为燃料的发电厂称为（）。
A.凝汽式火力发电厂
B.热电厂
C.火力发电厂
