智慧职教: Wolff定律

醛、酮在溶剂一缩二乙二醇中与85%的水合肼、NaOH反应,羰基转变为亚甲基,此反应称为: A: Clemmensen(克莱门森)反应 B: Cannizzaro(坎尼扎罗)反应 C: Schiemann(希曼)反应 D: Wolff(伍尔夫)-Kishner(凯惜纳)-黄鸣龙反应

醛、酮在溶剂一缩二乙二醇中与85%的水合肼、NaOH反应,羰基转变为亚甲基,此反应称为( )。 A: Clemmensen(克莱门森)反应 B: Cannizzaro(坎尼扎罗)反应 C: Wolff(伍尔夫)-Kishner(凯惜纳)-黄鸣龙反应 D: Schiemann(希尔曼)反应

Huang Ti Nei Ching is presented as a dialogue between Huang Ti and his ________.

Huang Ti Nei Ching is presented as a dialogue between Huang Ti and his chief physicians ________.

The three famous buildings in ancient China refer to ( ). A: Yueyang Tower, Huang He (Yellow Crane) Tower and Da Guan Tower B: Huang He Tower, Da Guan Tower, Tengwang Pavilion C: Yueyang Tower, Huang He Tower, Tengwang Pavilion D: Huang He Tower, Penglai Pavilion, Da Guan Tower

Su Shi's poems represent the highest achievement of poetry in the Northern Song Dynasty. He and Huang Tingjian are together called "Su Huang".(<br/>)

某用户在域名为wuyouschool.com.cn的邮件服务器上申请了一个账号，账号名为huang，则该用户的电子邮件地址是_______。 A: wuyouschoococn@huang B: huang@wuyouschoococn C: huang%wuyouschoococn D: wuyouschoococn%huang

某用户在域名为wuyouschool.com.cn的邮件服务器上申请了一个账号，账号名为huang，则该用户的电子邮件地址是 ______。 A: wuyouschool.com.cn@huang B: huang@wuyouschool.com.cn C: huang%wuyouschool.com.cn D: wuyouschool.com.cn%huang

某用户在域名为wuyouschool.com.cn的邮件服务器上申请了—个账号，账号名为huang，则该用户的电子邮件地址是______。 A: wuyouschool.com.cn@huang B: huang@vuyottschool.com.cn C: huang%wuyouschool.com.cn D: wuyouschool.com.cn%huang