题目4单选题
函数<img src="https://tihai-oss-cloud.itihey.com/img/daaa43c0807f0c87fca2440f77d071dd.webp">的定义域是A. <img src="https://tihai-oss-cloud.itihey.com/img/ef165fcac0bd3384d4d345ae8abd2fd1.webp">B. (0,1]<img src="https://tihai-oss-cloud.itihey.com/img/5a93af0394c634aa1be9de432251b09a.webp">(2,<img src="https://tihai-oss-cloud.itihey.com/img/e27162964a28fb4bba66b67e1a23fd0f.webp">)C. (0,1)<img src="https://tihai-oss-cloud.itihey.com/img/5a93af0394c634aa1be9de432251b09a.webp">(1,2]D. (0,2)