题目2A. 图1<img src="https://tihai-oss-cloud.itihey.com/img/36054b1e0e0ccb05a7c24a0edace416f.png">B. 图2<img src="https://tihai-oss-cloud.itihey.com/img/b69d207504c290d9651c311f638a537e.png">C. 图3<img src="https://tihai-oss-cloud.itihey.com/img/7e67de00e8dd1704753a07fa8e628ed7.png">D. 图4<img src="https://tihai-oss-cloud.itihey.com/img/304e3bc4e17e7c72c92d1a501c5bb203.png">