皮皮学，免费搜题
登录
搜题
【单选题】
在90°的DEPT实验中，谱图特征为( )A.
CH2 显示正峰，CH, CH3均出负峰;
B.
CH2出负峰，CH和CH3不出峰
C.
CH2 显示负峰，CH, CH3均出正峰;
D.
CH出正峰，CH2和CH3不出峰。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】根据括号内所给的词语,用现在完成时或一般过去时造句。 (1)(it/not/rain/this week) ___________________________________________________ (2)(the weather/be/cold/recently) ___________________________________________ (3)(it/cold/last...
【单选题】I recently read the Oxford 【C1】______ of the Tolstoy's War and Peace, translated by Louise and Aylmer Maude. 【C2】______ my shame, I had never read it before, so I was 【C3】______ to find myself reading...
A.
print
B.
publication
C.
issue
D.
edition
【简答题】For instance, something 1) _________ about my father was how he had 2) ___________ upon me from 3)__________ to love books and reading. In fact, this 4)___________ into a family habit of after-dinn...
【简答题】藻类植物体构造简单,没有真正的根、茎、叶分化.常为____、____、____和____等。
【单选题】I recently read the Oxford【C1】______ of the Tolstoy's War and Peace, translated by Louise and Aylmer Maude.【C2】______ my shame, I had never read it before, so I was【C3】______ to find myself reading a ...
A.
print
B.
publication
C.
issue
D.
edition
【单选题】学汉语一定要坚持,不能三天打鱼,两天晒网。 *“三天打鱼,两天晒网”的意思是:
A.
做事或学习不能坚持
B.
很爱惜鱼网
C.
打到很多鱼
D.
把鱼网晒好了才能打到更多鱼
相关题目：
参考解析：
知识点：
题目纠错 0
发布
