挑战大学英语四级考试1688高频核心词汇PDF电子书下载

Unit 1 1

Unit 2 9

Unit 3 17

Unit 4 25

Unit 5 33

Unit 6 41

Unit 7 47

Unit 8 55

Unit 9 63

Unit 10 71

Unit 11 77

Unit 12 83

Unit 13 89

Unit 14 95

Unit 15 101

Unit 16 107

Unit 17 113

Unit 18 119

Unit 19 125

Unit 20 131

Unit 21 137

Unit 22 143

Unit 23 149

Unit 24 155

Unit 25 161

Unit 26 167

Unit 27 173

Unit 28 183

Unit 29 191

Unit 30 199

Unit 31 207

Unit 32 215

Unit 33 223

Unit 34 231

Unit 35 239

Unit 36 247

Unit 37 255

Unit 38 263

Unit 39 269

Unit 40 277

Unit 41 285

Unit 42 293

Unit 43 301

Unit 44 307

Unit 45 315

Unit 46 321

Unit 47 329

Unit 48 337

Unit 49 345

Unit 50 353

Unit 51 361

Unit 52 369

Unit 53 377

Unit 54 385

Unit 55 393

Unit 56 403

Unit 57 411