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【单选题】
普通锌锰干电池是那个属性的
A.
酸性
B.
碱性
C.
中性
D.
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举一反三
【单选题】下列各化合物中既有 P- π共轭,又有σ - π超共轭的是( ) 。
A.
对甲基苯甲醛
B.
对硝基苯酚
C.
苯甲醚
D.
对甲苯胺
【简答题】II . 完形填空 (不会的词标记出来,在家用字典查好背下来) The day before Father's Day, Mrs Berry asked her students to make a card for their fathers. She passed out paper and pieces of cloth . Elizabeth looked for a while at t...
【单选题】( )是解决民族地区各种问题的总钥匙。
A.
进步
B.
团结
C.
经济
D.
发展
【单选题】下列各化合物中既有 p-π 共轭,又有 σ-π 超共轭的是
A.
甲苯
B.
对硝基甲苯
C.
对氯甲苯
D.
苯酚
【单选题】(2013·无锡市高三二模)All her hard work ________ in the end, and she finally passed the exam.
A.
paid back
B.
paid off
C.
brought out
D.
brought off
【单选题】All her hard work ______ in the end, and she finally passed the exam.
A.
showed off
B.
paid off
C.
left off
D.
kept off
【单选题】All her hard work ______ in the end, and she finally passed the exam.
A.
paid back
B.
paid off
C.
brought out
D.
brought off
【单选题】若显示屏的分辨率是1024*768,一副256*192的图像占显示屏的()
A.
1/2
B.
1/4
C.
1/16
D.
1/8
【判断题】发展是解决民族地区各种问题的总钥匙。
A.
正确
B.
错误
【单选题】All her hard work in this semester _________ in the end, and she finally passed the exam.
A.
paid off
B.
paid
C.
paid back
D.
paid out
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