以只读方式打开的某一份文档，修改后仍可在原目录中以原文件名进行保存。 ()
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What does the author probably mean by "the sizzle, not the steak"(Paragraph 5)？
A. Something worthwhile.
B. Something worthless.
C. Something of no practical value.
D. Something that is unnecessary.
According to the passage, all these following are problems resulting from the tourism EXCEPT
A. environmental pollution.
B. Hawaiian economy.
C. the loss of species.
D. the risk to creatures and biodiversity.
According to the author, the function of the structured-inquiry method is
A. to make decisions by debate.
B. to apply the Internet and wireless computer technology.
C. to brake on the thinking process, slowing it down.
D. to create a level of conceptual clarity.
关于关键字class和typename，下列描述中正确的是()。
A. 程序中所有的class都可以替换为typename
B. 程序中所有的typename都可以替换为class
C. 选项A)和B)都正确
D. 选项A)和B)都错误
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