题目1A. <img src="https://tihai-oss-cloud.itihey.com/img/766590b7beb10bedb262a0cf2e997a2f.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/1845689011eb1c258346e47cd79c32e2.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/18ba590810740e6129eed6b0222dc6b4.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/1d43b4ae86c3c3e3c00269d5ee05e45a.png">