参考答案
一、单项选择题
1．B2．B3．D4．C5．B6．C7．B8．D9．C10．B
11．C12．B13．A14．C15．C16．A17．C18．B19．B20．D
21．B22．A23．C24．D25．D26．B27．A28．D29．C30．A
31．B32．D33．B34．A35．B36．B37．D38．C39．D40．B
41．B42．C43．B44．C45．C46．C47．C48．D49．D50．B
51．A52．D53．A54．D55．D56．A57．C58．B59．C60．D
61．B62．B63．C64．D65．C66．B67．D68．D69．D70．A
二、多项选择题
1．ACD2．ACDE3．ABCD4．ACDE5．ABCD
6．ABDE7．ACD8．ABDE9．ABCE10．ACDE
11．BD12．ABCD13．ABC14．ACE15．ABCE
16．BC17．BCDE18．ABD19．CD20．ABDE
21．ABC 22．ACE23．ABDE24．ACDE25．CE
26．ABCD27．ABCD28．ACDE29．ABCE30．ABCE
