以下四种有机化合物分子式均为C 4 H 10 O:其中既能发生消去反应生成相应的烯烃,又能氧化生成相应醛的是 ( )
A.
①②
B.
只有②
C.
②和③
D.
③和④
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
【单选题】Look at the following writing question and choose which essay structure is incorrect . Some people think that governments should spend money on railways. Others believe that there should be more inves...
A.
(1) introduction; (2) body paragraph 1; (3) body paragraph 2; (4) conclusion
B.
(1) introduction; (2) body paragraph; (3) conclusion
C.
(1) introduction; (2) body paragraph 1; (3) body paragraph 2; (4) body paragraph 3; (5) conclusion
【简答题】短文填词。 (1)O Sundays, we like (2)g to the movies. My (3)f movies are (4)t . Some people think they're scary but I like (5)t very much. I don't like (6)d because they are boring. But some people like the...
【简答题】Everybody dreams. Some people think dreams can tell us about the future. Other people think dreams tell us about ourselves. It's like our 1 is talking to us. Why are dreams often strange and hard to u...
【简答题】Everybody dreams. Some people think dreams can tell us about the future. Other people think dreams tell us about ourselves. It’s like our 1 is talking to us. Why are dreams 2 strange and hard to...