__________cleaning the yard and making up the beds for the old, we also read newspapers for them

and had chats with them. [ ]

A. Except for  

B. Rather than

C. Apart from  

D. Instead of

在大体积混凝土浇筑时，下列措施中不可能减少混凝土内外的温差的是______。

A．选用水化热较低水泥

B．增大水泥用量

C．降低浇筑速度

D．减少浇筑层厚度