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【简答题】
? 符合-比尔定律的一有色溶液,当有色物质的浓度增加时,最大吸收波长和吸光度分别是 A. 不变、增加 B. 不变、减少 C. 增加、不变 D. 减少、不变
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【简答题】完型填空（10分，每小题1分） Good afternoon, boys and girls. I have something to 41 you. This afternoon we’re going to 42 some cleaning after school. The radio report says it will be 43 at night, so please don’t f...
【单选题】Section B Directions: This section is to test your ability to understand short conversations. There are 2 recorded conversations in it. After each conversation, there are some recorded questions. The ...
A.
Three weeks ago.
B.
Last month.
C.
Last week.
D.
Last Monday.
【单选题】By eleven o'clock tomorrow, we _____ the task. [ ]
A.
will have finished
B.
will finish
C.
have finished
D.
finish
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