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【单选题】
有甲、溶液,甲溶液的pH是乙溶液的两倍,则甲溶液中[H+]与乙溶液中[H+]的关系()
A.
2︰1
B.
100︰1
C.
1︰100
D.
无法确定
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B.
石英粉
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【单选题】In Chile, where Darwin saw earthquakes and volcanoes, he began to see what must have happened. The centre of the earth, he decided, was very hot. The surface of the earth was thinner in some places. I...
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【单选题】It is hard to imagine that what would happe in the world if there were no electricity now.
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【单选题】What ________ if there ______ no water or air on the earth?
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【单选题】－I can't walk any longer, Mum. －Why? _____, dear? [     ]
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【单选题】The police said they would not give up looking into other possibilities ____they find out what happened.
A.
as
B.
while
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until
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although
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相关题目：
【单选题】热压成形的坯体,不能直接烧结需经排蜡工序,排蜡装坯常用的吸附剂是?
A.
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【单选题】Which of the following italicized parts is used as an object?
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【单选题】In Chile, where Darwin saw earthquakes and volcanoes, he began to see what must have happened. The centre of the earth, he decided, was very hot. The surface of the earth was thinner in some places. I...
A.
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【单选题】It is hard to imagine that what would happe in the world if there were no electricity now.
A.
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难以想象世界上如果没有电，生活会是什么样子。
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【单选题】What ________ if there ______ no water or air on the earth?
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A.
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淋巴肉瘤
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【单选题】－I can't walk any longer, Mum. －Why? _____, dear? [     ]
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【单选题】对放射疗法不敏感的恶性肿瘤有
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【单选题】The police said they would not give up looking into other possibilities ____they find out what happened.
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while
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