题目1A. <img src="https://tihai-oss-cloud.itihey.com/img/250dda06345acf7768c64820fe157ad6.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/2da76ec80e69d7c8ec0dabc3ca9c9b8e.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/a53600c5c796bd6c8e940c7e1e2b62b6.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/8e61fb44dfa3d3f5eb28bc06823f749e.png">