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单项选择题

函数的驻点便是函数的极值点。

A．对
B．错

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热门试题

单项选择题格状填料是利用旋切单板压成波纹状，然后把波状单板与平单板交替配置，胶合后再按芯层材料厚度锯开。（） A、正确 B、错误

单项选择题Many reggae musicians were and are Rastafarian. What is a Rastafari?

A．.a musician who plays reggae music
B．.someone who is homeless and takes drugs, especially marijuana
C．.someone who adhere to a certain religious belief, called Rastafarianism
D．.a musician who believes that taking marijuana can help them to be more creative