作业1答案
1.D2.A3.C4.B5.B
6.D7.B8.D9.A10.B
11.C12.D13.B14.A15.B
16.C17.B18.A19.D20.B
21.C22.D23.D24.A25.B
26.B27.A28.C29.C30.A
31.A32.C33.D34.C35.D
36.T37.T38.NG39.F40.F
作业2答案
1.C2.A3.D4.D5.D
6.D7.B8.B9.C10.C
11.A12.B13.B14.A15.B
16.C17.A18.D19.D20.B
21.B22.A23.C24.A25.C
26.B27.C28.D29.D30.C
31.A32.D33.C34.D35.B
36.F37.F38.T39.T40.NG
作业3答案
1.A2.C3.A4.B5.A
6.D7.A8.B9.B10.B
11.A12.B13.C14.B15.B
16.B17.D18.C19.C20.C
21.D22.A23.D24.C25.B
26.A27.C28.B29.B30.C
31.D32.D33.B34.D35.C
36.F37.T38.T39.NG40.T
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