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　一、单选题

　　(1)A; (2)C; (3)A; (4)B; (5)C; (6)D; (7)B; (8)B;

　　(9)D; (10)C; (11)B; (12)B; (13)A; (14)A; (15)B; (16)D;

　　(17)C; (18)D; (19)A; (20)A; (21)A; (22)B; (23)D; (24)D;

　　(25)D; (26)A; (27)C; (28)A; (29)B; (30)B; (31)B; (32)A;

　　(33)D; (34)C; (35)D; (36)D; (37)A; (38)D; (39)C; (40)B;

　　(41)A; (42)B; (43)D; (44)C; (45)C; (46)B; (47)B; (48)B;

　　(49)A; (50)A; (51)A; (52)B; (53)A; (54)C; (55)B; (56)B;

　　(57)C; (58)A; (59)D; (60)B; (61)A; (62)B; (63)D; (64)C;

　　(65)B; (66)B; (67)C; (68)B; (69)A; (70)B;