TEXT 1
Unit One 1
Unit Two 8
Unit Three 17
Unit Four 23
Unit Five 29
Unit Six 35
Unit Seven 43
Unit Eight 51
Unit Nine 59
Unit Ten 67
Unit Eleven 75
Unit Twelve 83
Unit Thirteen 89
Unit Fourteen 98
Unit Fifteen 105
Unit Sixteen 112
Unit Seventeen 120
Unit Eighteen 130
Unit Nineteen 138
Unit Twenty 145
Unit Twenty-One 151
Unit Twenty-Two 159
Unit Twenty-Three 166
Unit Twenty-Four 176
Unit Twenty-Five 182
Unit Twenty-Six 189
Unit Twenty-Seven 196
电专业译文与答案 200
Unit One 200
Unit Two 203
Unit Three 207
Unit Four 210
Unit Five 213
Unit Six 215
Unit Seven 219
Unit Eight 222
Unit Nine 226
Unit Ten 229
Unit Eleven 233
Unit Twelve 236
Unit Thirteen 238
Unit Fourteen 242
Unit Fifteen 245
Unit Sixteen 248
Unit Seventeen 251
Unit Eighteen 255
Unit Nineteen 257
Unit Twenty 259
Unit Twenty-One 261
Unit Twenty-Two 264
Unit Twenty-Three 267
Unit Twenty-Four 271
Unit Twenty-Five 273
Unit Twenty-Six 277
Unit Twenty-Seven 279