参考答案
1.E2.D3.D4.E5.A6.B7.B8.E9.C10.B
11.A12.D13.B14.C15.C16.C17.B18.E19.B20.C
21.D22.C23.E24.A25.C26.B27.B28.D29.E30.B
31.A32.A33.D34.C35.B36.C37.B38.C39.A40.E
41.C42.A43.E44.D45.C46.C47.D48.B49.D50.A
51.B52.E53.C54.A55.ABCD 56.BD 57.ABDE 58.ABCD 59.ABCD 60.ABC
