（一）单项选择题
1.A2.B3.A4.C
5.D6.B7.D8.B
9.B10.C11.D12.D
13.B14.A15.D16.D
17.A18.A19.C20.D
21.B22.A23.C24.B
25.D26.D27.B28.A
29.B30.B31.B32.D
33.B34.B35.A36.D
37.A38.A39.D40.D
41.C42.C43.B44.A
45.C46.C47.C48.A
33.是34.非35.是36.非
37.非38.非39.非40.是
41.非42.是43.非44.是
45.是46.非47.是48.非
49.非50.非51.是52.非
53.非54.是55.非56.非
57.是58.是59.是60.是
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