GMAT真题:2010年8月作文（至8.31）（十四）(2)

　　Unless it can be shown that the school does not usually produce graduates who report impressive achievments, and it can also be shown that the computer instruction influenced the students to make those achievements the conclusion drawn is unwarranted.

　　A. First of all, this argument commits a fallacy of post hoc, ergo propter hoc.

　　B. Second, the conclusion is based on the gratuitous assumption that Nova High School’s “success” in using interactive computer instruction in only three subjects would ensure a similar sweeping success in adopting computer instruction throughout the curriculum of all schools in the district.

（责任编辑：申月月）