Unit One Scientific Research (Ⅰ) Part A Part B Part C Unit Two Scientific Research ( Ⅱ ) Part A Part B Part C Unit Three Safety ( Ⅰ ) Part A Part B Part C Unit Four Safety (Ⅱ) Part A Part B Part C Unit Five Gap (Ⅰ) Part A Part B Part C Unit Six Gap ( Ⅱ ) Part A Part B Part C Unit Seven Gender ( Ⅰ ) Part A Part B Part C Unit Eight Gender (Ⅱ) Part A Part B Part C Unit Nine Entertainment (Ⅰ) Part A Part B Part C Unit Ten Entertainment (Ⅱ) Part A Part B Part C Unit Eleven Education (Ⅰ) Part A Part B Part C Unit Twelve Education ( Ⅱ ) Part A Part B Part C
