题目2A. <img src="https://tihai-oss-cloud.itihey.com/img/abbd60d3e77ba43624fb44350b954d5c.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/8cbd936641674e2ab71638bbec2d2a79.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/8388ef8389b8a395a731b40769a501fd.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/4e2d1dc69920f430e7e780214cb6e0c4.png">