皮皮学，免费搜题
登录
搜题
【单选题】
下列化合物的醇溶液中加入少许镁粉,再添加几滴浓盐酸,出现微红色或红色,除了:A.
异黄酮
B.
黄酮
C.
二氢黄酮
D.
黄酮醇
E.
二氢黄酮醇
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】Named as one of the 100 most influential people of the 20th century, legendary designer Coco Chanel was a pioneer in the world of fashion. Her kind of fashion was inspired by men's wear and she beli...
【单选题】Researchers investigating brain size and mental ability say their work offers evidence that education protects the mind from the brain's physical deterioration. It is known that the brain shrinks as t...
A.
age
B.
education
C.
health
D.
exercise
【简答题】Jungle country is not friendly to man, but it is possible to survive there. You must have the right equipment and you must know a few important things about woodcraft. Then your chances of staying ali...
【单选题】___________ is known to everybody, the noon travels around the earth once every month.
A.
It
B.
As
C.
That
D.
What
【单选题】___________ is known to all tha t Shenzhou VI Launched Successfully .
A.
As
B.
What
C.
It
D.
That
【单选题】There is no doubt about it: the Earth really is growing warmer. If you live in a city, that is, urban【C1】______ have known for years that swaths of asphalt and concrete tend to【C2】______ the summer he...
A.
population
B.
citizens
C.
dwellers
D.
people
【简答题】心理咨询的对象主要是正常人，而心理治疗的对象主要是______的人。
相关题目：
参考解析：
知识点：
题目纠错 0
发布
