一天早晨的气温是﹣9℃，中午上升了5℃，下午又下降了8℃，则半夜的气温是．[ ]

 A．12℃

B．﹣22℃

C．22℃

D．﹣12℃

This article is well written because special attention ______ to the choice of words nod style of writing.

A．had been paid

B．has been paid

C．will be paid

D．will have been paid