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【单选题】
下列不属于悬架组成部件的是
A.
减震弹簧
B.
减震器
C.
横向稳定杆
D.
半轴
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参考答案:
举一反三
【简答题】Let us take a moment of the time just to pay tribute and ________________to the person called MOM though some may not say it openly to their mother. There’s no substitute for her. _______ every single...
【简答题】It’s possible to admire Oprah Winfrey and still wish Harvard hadn’t awarded her an honorary doctor of law degree ( 荣誉法学博士学位 ) and the commencement speaker ( 毕业典礼演讲嘉宾 ) spot at yesterday’s graduation. ...
【单选题】下列化合物中,能够与希夫试剂反应显红色,而且加入浓硫酸红色不消失的是
A.
甲醛
B.
乙醛
C.
苯甲醛
D.
丙酮
【单选题】下列与希夫试剂显色的是()。
A.
乙醛
B.
丙酮
C.
乙酸
D.
乙胺
【简答题】Let us take a moment of the time just to pay tribute and _1_ to the person called MOM though some may not say it openly to their mother. There’s no substitute for her. _2_ every single moment. Though ...
【单选题】关于希夫试剂的显色反应,下列说法 错误 的是
A.
品红亚硫酸试剂称为希夫试剂
B.
醛能够与希夫试剂显色
C.
酮能够与希夫试剂显色
D.
甲醛与希夫试剂反应后生成紫红色物质
【单选题】下列试剂能与醛反应显紫红色的是
A.
托伦试剂
B.
斐林试剂
C.
羰基试剂
D.
希夫试剂
【单选题】下列与希夫试剂显色的是( )。
A.
己醛
B.
丙酮
C.
乙酸
D.
乙胺
【简答题】Let us take a moment of the time just to pay tribute and ________________ the person called MOM though some may not say it openly to their mother. There’s no substitute for her. _______ every single m...
【简答题】Let us take a moment of the time just to pay tribute and ________________ the person called MOM though some may not say it openly to their mother. There’s no substitute for her. _______ every single m...
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