建设工程项目采用施工总承包管理模式的基本出发点是( )。
A.保证项目的质量
B.降低项目总投资的风险
C.减轻业主方的工作
D.保证承包方的利益
参考答案:C
_____ his parents are at home, he cooks by himself. [ ]
A. If
B. Even though
C. As if
D. Whether
TD-LTE- LTE中RE和RB的概念各是什么?