题目

His success was because of ________ he had been working hard. A. that B. the fact which C.the fact that D.the fact 答案：C  如图所示，“武江烟雨”是难得见的美丽景色，江面上环绕的雾是由水蒸气_____（填写物态变化名称）形成的，在这个过程中水蒸气会_____选填（“吸收”或“放出”）热量。