参考答案
一、单项选择题答案
1:C 2:B 3:C 4:B 5:C 6:B 7:D 8:A 9:B 10:C
11:B 12:A 13:D 14:A 15:D 16:A 17:C 18:D 19:B 20:C
21:A 22:C 23:C 24:D 25:C 26:D 27:C 28:C 29:B 30:D
31:C 32:D 33:D 34:C 35:C 36:B 37:B 38:D 39:C 40:A
41:B 42:D 43:B 44:A 45:B 46:B 47:B 48:C 49:D 50:B
二、多项选择题答案
1:ABCE 2:ACDE 3:ADE 4:ADE 5:ABCE 6:ABCE 7:ACD 8:ACD
9:ACE 10:AC 11:ACD 12:ABCD 13:ABCD 14:DE 15:ABCD 16:ABCD
17:ABCD 18:BCD 19:BCE 20:BD 21:DE 22:ACD 23:BCE 24:CDE
25:ADE 26:ABCD 27:ABCD 28:BCD 29:ACE 30:ABCD