干压陶瓷砖按材质可分为瓷质砖、炻瓷砖、细炻砖、（）五类。
A.精陶砖和炻质砖
B.炻质砖和陶质砖
C.粗炻砖和陶质砖
D.精陶砖和陶质砖
参考答案：B
Curing _______ people is so important that doctors must be _______. [ ]
A. sick, careful enough
B. ill, enough carefully
C. sick, enough careful
D. ill, enough carefully
前期如何排查施工区域管线？
