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³õÖÐÓ¢Óï´Ê»ãͬ²½Ñ§Á·²âExercises 1 Exercise 01 2 Exercise 02 6 Exercise 03 10 Exercise 04 14 Exercise 05 18 Exercise 06 22 Exercise 07 26 Exercise 08 30 Exercise 09 34 Exercise 10 38 Exercise 11 42 Exercise 12 46 Exercise 13 50 Exercise 14 54 Exercise 15 58 Exercise 16 62 Exercise 17 66 Exercise 18 70 Exercise 19 74 Exercise 20 78 Exercise 21 82 Exercise 22 86 Exercise 23 90 Exercise 24 94 Exercise 25 98 Exercise 26 102 Exercise 27 106 Exercise 28 110 Exercise 29 114 Exercise 30 118 Exercise 31 122 Exercise 32 126 ͬ²½Ñ§Á·²â´ð°¸Answers 131 Exercise 01 132 Exercise 02 133 Exercise 03 134 Exercise 04 135 Exercise 05 136 Exercise 06 137 Exercise 07 139 Exercise 08 140 Exercise 09 141 Exercise 10 142 Exercise 11 143 Exercise 12 144 Exercise 13 146 Exercise 14 147 Exercise 15 148 Exercise 16 149 Exercise 17 150 Exercise 18 151 Exercise 19 153 Exercise 20 154 Exercise 21 155 Exercise 22 156 Exercise 23 157 Exercise 24 158 Exercise 25 160 Exercise 26 161 Exercise 27 162 Exercise 28 163 Exercise 29 164 Exercise 30 165 Exercise 31 166 Exercise 32 168