题目1A. <img src="https://tihai-oss-cloud.itihey.com/img/ddae703af0370a326e22b7f77b5cb839.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/a7c9096ecc67bd4653abe1f68dd32dc3.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/4ae0c902446970b2582e94be2bb9113e.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/f342d116d627e8f85ab5a3bc07cf9f72.png">