题目2A. <img src="https://tihai-oss-cloud.itihey.com/img/073ad459ca3c6d8f2ddf429c269a485e.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/527a1ff3ec261fe01c39ba7c98236f63.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/f95a6fea18a79e199b179c3a933e8bef.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/67d22e2fb862b326b52ab3562304787f.JPG">