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问题
单项选择题
ISM规则的目标,特别注意的是()。
A.海上安全
B.人员伤亡
C.经济目标
D.海洋环保和人命财产安全
答案
参考答案:D
选择题
I can think of many cases _____ students obviously knew a lot of English words and expressions but couldn't write a good essay.
A. why
B. which
C. as
D. where
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填空题
有m个叶子结点(又称外结点)的哈夫曼树,其结点总数是
【3】
。
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