皮皮学，免费搜题
登录
搜题
【单选题】
下列哪种物质可作为气雾剂的抛射剂A.
二氯二氟甲烷
B.
乙醇
C.
三氯甲烷
D.
环氧乙烷
E.
乙醚
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】单词拼写。 1. She went upstairs and f_______ her son playing computer s. 2. It's h_______ than yesterday. Would like to go swimming? 3. Now we have to get t_______ the exams. 4. Please don’t get the...
【简答题】完形填空。 Two friends went to a city and 1 in a big hotel. Their room was on the 56th floor, and there was a fast lift, so they went up and down very 2 . They came back to the hotel very late one Saturday...
【单选题】He sleeps with his eyes _______ and mouth ________.
A.
close; open
B.
close; opened
C.
closed;opened
D.
closed;open
相关题目：