【单选题】
曲线<img src=https://huaweicloudobs.ahjxjy.cn/69FD683EFEA8DBB05B2596AED5CBFBAF.png title=%I_C7P4Z{BS~O95M95VE_LB.png alt=%I_C7P4Z{BS~O95M95VE_LB.png/>在<img src=https://huaweicloudobs.ahjxjy.cn/89E100431D4971FF078809230C06370A.png title=TWM(EGL)(2{9PCA~2D~ZEYU.png alt=TWM(EGL)(2{9PCA~2D~ZEYU.png/>处切线的斜率为( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/4D17A0E1938013C94A1F6189733308CA.png title=5TG{KZ8XDGG`E7IRL2IWALW.png alt=5TG{KZ8XDGG`E7IRL2IWALW.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/8F6851774ACBF83486B705EE46F353B2.png title=KFL2JCWEL4)0]05D%P@7_11.png alt=KFL2JCWEL4)0]05D%P@7_11.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/2563FDD4D328B169C9155303E0391719.png title=UR}$Z8S[]0)G)O(Y%UJS(1Y.png alt=UR}$Z8S[]0)G)O(Y%UJS(1Y.png/>