以下是引用maymayfang在2003-8-7 19:30:18的发言:
Peace, you mean that if the former conditions remain unchanged, and the latter changed that 0.2for each 1/5 then the answer is 3.8?why the correct is 4.2.I am doing NEWORIENTAL soft.I am wondering that it is the least likely to be false.
My husband did the math again and he also got 3.8.
I do find some incorrect answers in XDF's math book. The incorrect answers are rare though they do exist.
[此贴子已经被作者于2003-8-7 21:40:53编辑过] |