题目1A. <img src="https://tihai-oss-cloud.itihey.com/img/56b9962feff2d086d12469c9873b89b4.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/18ea4b394cc29c6dc40877a20d634a4f.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/de99f0abe34090398b5f6d232ae73dbb.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/025ac1ca6df3e768650d901096725dd6.png">