51.答案:ABDE52.答案:ABDE53.答案:AB54.答案:BCDE55.答案:ADE
56.答案:ABD57.答案:ACD58.答案:BCDE59.答案:ACDE60.答案:ABCD
61.答案:CD62.答案:ABDE63.答案:BCDE64.答案:ABD65.答案:ADE
66.答案:BCE67.答案:ABCD68.答案:ABD69.答案:ADE70.答案:CDE
71.答案:BCD72.答案:BCD73.答案;ABD74.答案:ABE75.答案:ACD
76.答案:BCD77.答案:ABCE78.答案:BDE79.答案:ABC80.答案:DE