Jack does his homework _________ Mary. So they both always get good grades in the exams.[ ]

A. so careful as

B. as carefully as

C. careful as

D. as careful as

将室外工程划分为室外建筑环境和室外安装2个单位工程，其目的之一为（）。

A.加强室外工程的管理和验收

B.方便室外工程的检查和评定

C.使室内工程与室外工程的检验有区别

D.做到室内外工程和谐协调