【正文】
wbacks. 15. It is true that A ... , but the chief faults (obvious defects )are ... 二)原因 1. bspfor ) the phenomenon(problem). 2. The answer to this problem involves many factors. 3. The phenomenon mainly stems from the fact that... 4. The factors that contribute to this situation include... 5. The change in ...largely results from the factamp。nb pbe so great that... 四)批駁 1)It is true that ..., but one vital point is being left out. 2) There is