题目6A. <img src="https://tihai-oss-cloud.itihey.com/img/63f70f16b263095a1892209279c2d0b1.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/bb29a5b6609a2b2d1cd656433f61b831.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/0c6c9ee4ad99a5c70aa346e038bde269.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/95953ae06c49020714224c3ae10b027e.png">E. <img src="https://tihai-oss-cloud.itihey.com/img/dedd5b312f6e987a7c85a77c781999e0.png">F. <img src="https://tihai-oss-cloud.itihey.com/img/2020e85f0729ce68824b8497a15e7c38.png">G. <img src="https://tihai-oss-cloud.itihey.com/img/cde939a06fbda14f66e6c3fb7d9029c9.png">H. <img src="https://tihai-oss-cloud.itihey.com/img/d6198fe2366bb7ae5393219217dbee3a.png">