答案:
一、单项选择题
1.D2.B3.C4.A5.B6.B7.A8.D9.A10.
B11.A12.B13.B14.B15.D16.D17.B18.C19.A20.
A21.C22.A23.D24.B25.C26.C27.D28.C29.B30.
A31.C32.D33.D34.B35.B36.B37.A38.C39.C40.
A41.B42.D43.D44.D45.D46.C47.D48.C49.C50.D
二、多项选择题
51.AC52.AD53.ABD54.ABCD55.ABCE56.AB57.BCE58.ADE59.ABC
60.ABDE61.ADE62.ABE63.ABDE64.BE65.ABD66.ABC67.AD68.ABCE69.BCE
70.BD71.BE72.ACD73.ACE74.DE75.AE76.ABD77.DE78.DE79.DE80.ABE
