题目

“人间四月芳菲尽，山寺桃花始盛开”，你认为造成这一现象的主要非生物因素是（  ） A、光        B、水            C、温度           D、湿度 答案：CWith everything important _______, my father is now lying on the beach, enjoying the bright sunshine and fresh air.A．to complete B．completing C．completed D．being completed