题目1A. <img src="https://tihai-oss-cloud.itihey.com/img/7cd05eaa5e8055c8e0d782c082a2da66.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/2b0968eb8fd6cac5167c123a2f445435.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/8b3024d78f7face79646003bc699fff7.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/6416a56a25c1085ce77eb7ecf9d28a71.png">