在密闭绝热的房间内，启动一台所有设备都置于室内的空调机籍以降温，最终室内的温度将（）。
A.降低
B.升高
C.不变
D.无法确定
参考答案：B
— My father's just back from work, ?
— . He is having a rest in the room. [ ]
A. hasn't he; Yes, he has.
B. has he; No, he hasn't.
C. isn't he; Yes, he is.
D. Is he; No, he isn't.
叶酸
