一、单项选择题
1．A2．B3．D4．A5．A6．D7．A8．C9．A10．C
11．A12．D13．B14．B15．B16．D17．A18．C19．B20．B
21．D22．D23．A24．B25．B26．B27．B28．C29．B30．A
31．B32．B33．B34．D35．B36．B37．A38．D39．A40．B
41．C42．D43．B44．A45．C4-6．B47．B48．A49．A50．C
二、多项选择题
1．ADE2．ABCD3．ABD4．ABCDE5．ABCD
6．ABCDE7．ABD8．ADE9．ABCDE10．BCD
11．ABCDE12．AB13．AD14．AB15．CDE
