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【单选题】
What are the shopping goods that are basically considered the same?A.
Those that satisfy similar needs of the consumer.
B.
Those that consumers don't care where to buy.
C.
Those that consumers spend much time looking for.
D.
Those that can be found everywhere.
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【简答题】网站地址 WWW.BAIDU.COM属于 ( )级域名?
【单选题】The K a of HCOOH is 1.8 × 10 -4 , the K b of Ac - is
A.
1.8 × 10 -4
B.
1.8 × 10 -10
C.
5 . 6×10 - 10
D.
5 . 6×10 - 4
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