I'm not a little tired today after giving the room a thorough cleaning and I have never had ____ today.[ ]

A. as tiring a day as

B. as a tiring day

C. tiring as a day as

D. day as a tiring as

监理单位对施工单位建设行为的监督管理，是从（　　）的角度对建设工程生产过程实施的管理。

A．工程总承包方

B．施工总承包方

C．产品生产者

D．产品需求者