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【单选题】
第二次世界大战后世界经济的发展经历了许多曲折和起伏兴衰的变化过程,唯独旅游业一枝独秀、经久不衰,至今发展方兴未艾,这说明现代旅游和旅游业具有 。
A.
增长的持续性
B.
发展的不平衡性
C.
游客的大众性
D.
地区的广泛性
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参考答案:
举一反三
【单选题】巴比妥类药物的母核结构为( )
A.
乙内酰脲
B.
丙二酰脲
C.
氨基醚
D.
吡唑酮
【单选题】巴比妥类药物的母核结构为。( )
A.
环己烯
B.
喹啉环
C.
丙三醇
D.
丙二酰脲
E.
双缩脲
【单选题】巴比妥类药物的母核结构为( )
A.
环己烯
B.
喹啉环
C.
丙三醇
D.
丙二酰脲
【单选题】On no account ______ ever leave the baby at home alone.
A.
should you
B.
you should
C.
shall you
D.
you shall
【简答题】________是国家信息中心以打造国家经济形势晴雨表为目标推出的一个全面反映我国经济运行态势和经济政策变动的海量信息平台。
【单选题】The possible meaning of the sentence “You should know better than to leave your little sister at home by herself” is _________.
A.
You should be wise enough not to leave your little sister at home by herself.
B.
You should be wise enough to leave your little sister at home by herself.
C.
You should leave your little sister at home by herself.
D.
You should stay at home.
【判断题】不牺牲自己利益的让步是没有的。( )
A.
正确
B.
错误
【单选题】巴比妥类药物的母核结构为()。
A.
环已烯
B.
B、啉环
C.
C、丙三醇
D.
丙二酰脲
【多选题】Why should you leave adequate time when you trasfer in the stopover?
A.
Sometimes you need to change ternimals.
B.
You should need enough time to go through the security check.
C.
You need time to shop at the duty-free shop.
D.
You need time to meet some friends.
【单选题】When you want to leave your present job, you should write a letter ______.
A.
refusing a job offer
B.
requesting references
C.
of application
D.
of resignation
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