Chongqing doesn’t _____me．It is so hot that I can’t ______it indeed．          

A．agree on; come up with

B．agree with; put up with

C．agree to; end up with

D．agree; take on..

下列属于改善混凝土耐久性的外加剂的是（）

A.缓凝剂

B.速凝剂

C.早强剂

D.引气剂