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【单选题】
份同一有色物质溶液吸光度。若甲液用1cm吸收池,乙液用2cm吸收测定,结果吸光度相同,甲、溶液浓度的关系是()。A.
C甲=C乙
B.
C乙=2C甲
C.
C乙=4C甲
D.
C甲=2C乙
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举一反三
【简答题】下列各项采用三栏式的订本式账簿的是（ ）。
【简答题】What happened to him shortly after?
【单选题】What happened to him in 1982?
A.
He realized that he could train to be a runner.
B.
He knew that he could be a mountaineer.
C.
He had the likelihood to be a long-distance runner.
D.
He was able to turn jockey （赛马骑师） .
【单选题】What happened to him when he came back to his car?
A.
The manager called him.
B.
His books were stolen.
C.
He saw a man coming to his car.
【简答题】You will now listen to a conversation. You will then be asked a question about it. After you hear the question, you will have 20 seconds to prepare your response and 60 seconds to speak. Now play trac...
【单选题】24 seconds after the start of Alibaba’s double eleven, sales reached how much?
A.
3000000000
B.
1000000000
C.
1000000
D.
3000000
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