单项选择题

创建一个直径20mm、高10mm的圆柱体时，选择"建模"-”"固体"-"圆柱体"
A、正确
B、错误

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多项选择题

Which of the following methods could be used for a monopolist to raise its rivals’ costs? ( ) A.
lobbying the government to erect barriers to entry B.
increasing advertising expenditures to force entrants to increase their advertising expenditures C.
providing complementary goods and services to force entrants to also provide complementary products D.
sabotaging corporate competitors

单项选择题

在word 2010中，表格的内外框线不可以设置成不同的线型。( )
A、正确
B、错误