焦油加工的主要任务是获得酚、萘、蒽等纯产品和（）等粗产品。
参考答案：洗油沥青
What a table! I've never seen such a thing before.It is _____ it is long.[ ]
A. half not as wide as
B. wide not as half as
C. not half as wide as
D. as wide as not half
电话和信号电缆应与电力电缆分别布置在巷道两侧，若不得已也可布置在同一侧。（）
