《商务英语》 同步练习册 石定乐主编PDF电子书下载

Unit One 1

Unit Two 3

Unit Three 7

Unit Four 11

Unit Five 14

Unit Six 17

Unit Seven 21

Unit Eight 23

Unit Nine 26

Unit Ten 28

Unit Eleven 31

Unit Twelve 35

Unit Thirteen 39

Unit Fourteen 45

Unit Fifteen 49

Unit Sixteen 55

Unit Seventeen 61

Unit Eighteen 67

Unit Nineteen 69

Unit Twenty 71

Unit Twenty-one 76

Unit Twenty-two 81

Unit Twenty-three 84

Unit Twenty-four 87

Unit Twenty-five 91

Unit Twenty-six 96

Unit Twenty-seven 98

Unit Twenty-eight 100

Unit Twenty-nine 103

Unit Thirty 106