参考答案
第一单元
1.A2.D3.D4.B5.C6.C7.B8.C9.E10.A11.D12.D13.E14.E15.C16.E17.B18.E19.B20.C21.D22.B23.D24.D25.C26.B27.C28.C29.B30.C31.D32.D33.E34.C35.E36.C37.B38.C39.D40.D41.E42.D43.E44.C45.C46.E47.C48.E49.E50.B51.D52.D53.B54.B55.B56.C57.E58.B59.C60.A61.E62.E63.C64.E65.C66.C67.A68.E69.C70.C71.E72.A73.D74.C75.A76.E77.C78.E79.D80.E81.E82.D83.D84.C85.A86.C87.E88.A89.B·90.E91.A92.C93.A94.C95.A96.E.97.C98.A99.E100.B101.E102.B103.B104.D105.D106.A107.E108.D109.A110.C111.A112.E113.D114.D115.C116.B117.D118.C119.E120.B121.C122.E123.B124.C125.E126.E127.C128.C129.B130.D131.D132.C133.B134.A135.C136.E137.E138.D139.B140.B141.D142.E143.B144.D145.D146.C147.E148.B149.A150.A