单项选择题

如何删除数组的最后一个元素() (3分) A.
array_del B.
array_push C.
array_key D.
array_pop

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The real reason for ChoicePoint's fast expansion is thatA.it collects and sells personal information.B.it has acquired nearly 60 firms since 1997.C.the industry is largely unregulated by the government.D.the information it provides is useful to many.
A.it
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B.it
C.
C.the
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言语交际中提出”地点安全准则”，主要是为了回避和提防潜在的听话人。
A.正确
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