Turn on the television or open a magazine and you _____ advertisements showing happy families. [ ]

A. will often see

B. often see

C. are often seeing

D. have often seen

下列各项工作中，属于施工质量事中控制的有( )。

A．技术核定

B．检验批质量验收

C．隐蔽工程验收

D．见证取样送检

E．质量控制资料管理