单项选择题

有五个等式:①y=3x+1;②y²=x²-1;③y=√x;④y=|x|;⑤|y|=x.其中,表示“y 是x的函数”的有（）

A.1个
B.2个
C.3个
D.4个

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单项选择题

According to the passage, Craig Conway（）

A．tactfully handled oracle's hostile bid.
B．induced the resign of his three managers.
C．ignored customers' grievances.
D．is technologically illiterate.

单项选择题

M：You know I’m not too sure if the new salary will be high enough or even the new position is really what I want.Be sides，I like the work that I’m doing now.W：It sounds as though you’ve already made up your mind about what you are going to do.Q：What is the man thinking about？（）

A．Whether to change his job.
B．Asking for a higher salary.
C．Accepting a new secretary.
D．Getting a better position.

有五个等式:①y=3x+1;②y2=x2-1;③y=√x;④y=|x|;⑤|y|=x.其中,表示“y 是x的函数”的有（）

有五个等式:①y=3x+1;②y²=x²-1;③y=√x;④y=|x|;⑤|y|=x.其中,表示“y 是x的函数”的有（）