参考答案
1.D2.C3.A4.A5.D6.A7.A8.B9.A10.D
11.C12.D13.C14.A15.B16.D17.A18.D19.A20.D
21.D22.D23.D24.E25.E26.D27.A28.D29.D30.D
31.C32.E33.C342.A35.C36.A375.A38.B39.C40.B
419.B42.C43.D44.D45.D46.E47.E48.D49.C50.E
51.D52.C53.C54.E55.D56.C57.C58.A59.C60.D
61.C62.E63.C64.B65.D66.D67.C68.C69.A70.C
71.C72.C73.C74.C75.E76.D77.D78.D79.C80.E