【单选题】【消耗次数：1】
已知二元函数<img src=https://huaweicloudobs.ahjxjy.cn/5FDC7948BA3C49BB159B706DCCA3204D.png title=DZ)R6ZOJRS9VUVPVPB3FB]3.png alt=DZ)R6ZOJRS9VUVPVPB3FB]3.png/>，则<img src=https://huaweicloudobs.ahjxjy.cn/AD2D6B67F3DEAC06BE6533022EE88AA7.png title=SWX)I]O6OLQ1D}(J9)%QHGN.png alt=SWX)I]O6OLQ1D}(J9)%QHGN.png/>（ ）
①
<img src=https://huaweicloudobs.ahjxjy.cn/C65AD8D454202D797ADCD0A27E26C5CE.png title=RLREGJ[H0_]EEO[M1UZV]93.png alt=RLREGJ[H0_]EEO[M1UZV]93.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/6BF2A4DA6EA79C5115423B5517B7C2F8.png title=RHP`3_{$YWRW_DHPI$IW@6E.png alt=RHP`3_{$YWRW_DHPI$IW@6E.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/6B59E0C3F24EDF0AA7B4A06A0F9A7512.png title=]43AG36{@)F)GQ}VU7320PB.png alt=]43AG36{@)F)GQ}VU7320PB.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/921D5CB95F9585C4575316F1C022073E.png title=QW%W_44$ZHP]}A8L8{%8(N2.png alt=QW%W_44$ZHP]}A8L8{%8(N2.png/>
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