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举一反三
【单选题】用系统命名法命名时,化合物CH3CH(CH3)2COOH应称为()。
A.
3-甲基丁酸
B.
2-甲基丁酸
C.
异丙基乙酸
D.
异丁基甲酸
【判断题】水杨酸【图片】用系统命名法命名时,应该称为2-羟基苯甲酸。
A.
正确
B.
错误
【单选题】用系统命名法命名时,化合物CH3CH(CH3)CH2COOH应称为()
A.
3-甲基丁酸
B.
2-甲基丁酸
C.
异丙基乙酸
D.
异丁基甲酸
【简答题】Yoshio and Hiromi Tanaka are a young Japanese couple living in the USA while Yoshio studies electrical engineering.They clearly love each other very deeply,but,says Yoshio,“We didn’t marry for love in...
【单选题】用系统命名法命名时,化合物CH3CH(CH3)CH2C00H应称为( )。
A.
3-甲基丁酸
B.
2-甲基丁酸
C.
异丙基乙酸
D.
异丁基甲酸
【单选题】Friends and relatives of the young couple have come to congratulate them _______ the arrival of the new baby.
A.
in
B.
on
C.
of
D.
with
【单选题】用系统命名法应命名为( )。
A.
甲基乙基苯
B.
N-甲基-N-乙基苯胺
C.
苯胺
D.
二甲苯胺
【单选题】The young couple _______ their new life to a railway train on a long unknowntrack.
A.
imagined
B.
figured
C.
compared
D.
cheered
【单选题】The novel ended happily, and the young couple was married ______
A.
in the final
B.
in the end
C.
to the last
D.
in conclusion
【单选题】The young couple reached their house in the evening and found that someone _____ into the house during the day. [     ]
A.
broke
B.
had broken
C.
has broken
D.
was breaking
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