Question

設(shè)點(diǎn)M(x，y)對(duì)應(yīng)點(diǎn)N(x，)，若M(3，0)則對(duì)應(yīng)點(diǎn)N是(　，　)；若M(0，9)則對(duì)應(yīng)點(diǎn)N(　，　)．

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A．(3，0)、(0，)	B．(0，3)、(，0)
C．(3，0)、(，0)	D．(0，3)、(0、)

Answer 1

答案：A