51.答案:ABD52.答案:ACDE53.答案:BD54.答案:ABE55.答案:ABC
56.答案:ABDE57.答案:ACD58.答案:ABDE59.答案:ACDE60.答案:BCE
61.答案:ABCE62.答案:ABCD63.答案:AC64.答案:AC65.答案:ABCE
66.答案:ABD67.答案:ABDE68.答案:ACD69.答案:ABCD70.答案:ACE
71.答案:BCE72.答案:ABCD73.答案:ABD74.答案:ACDE75.答案:AB
76.答案:ABC77.答案:BCD78.答案:ABC79.答案:ABC80.答案:ABCE