题目2单选题
设函数<img src="https://tihai-oss-cloud.itihey.com/img/9e83a3ff5b49fdf33925db37edf90f8c.png">在点<img src="https://tihai-oss-cloud.itihey.com/img/6f8ba2e68f6bdade086e371480234882.png">处可导 ,则<img src="https://tihai-oss-cloud.itihey.com/img/cc4e47fe4ffd0b1d61845d6076a25936.png"> ( )A. <img src="https://tihai-oss-cloud.itihey.com/img/4930a224913dbe09c9b743443a23cdd7.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/b086725e3b83a4d60e4f23a243ab5c3f.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/6eec4f9b04c6f3388407c114b017acdd.png">D. -<img src="https://tihai-oss-cloud.itihey.com/img/4930a224913dbe09c9b743443a23cdd7.png">