题目1单选题
<img src="https://tihai-oss-cloud.itihey.com/img/9d2286a6f9635bba53d525dbe53b9d62.png">的产物是A. <img src="https://tihai-oss-cloud.itihey.com/img/7ca6a9ff26f8bbd822f25350135aa69d.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/8998bdbecd440ebebfb197db5002bf43.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/c0eb7396ea5d4f5b8fd6f3fdd565dd2b.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/6cef44869c6a416d4a441a687da5184c.png">