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【单选题】
假设在一棵二中，双分支结点数为15个，单分支结点数为32个，则点数为 ______个。A.
15
B.
16
C.
17
D.
47
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【单选题】听力原文： Many of the Dutch expressions heard in American English were first used in England in the seventeenth century. (32) That was a time of fierce naval competition between England and the Netherland...
A.
Because Americans used them very often in the seventeenth century.
B.
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C.
Because British people used them for things that were not good to hear.
D.
Because American people hated the Dutch people.
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上一层的结构层计算
D.
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【单选题】按照《 2010 年通则》的规定,以 FOB 贸易术语的变形成交,买卖双方风险 的划分界限是( )。
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