XDF阅读蓝书P73 passage15

Jessy1987

XDF阅读蓝书P73 passage15里面的第7道作者态度题,答案里面是选D的,但是我看到line20里就有一个flaw为什么最后不是选flaw的呢?

题目如下,谢谢!!!

7.The author suggests that implementing conventional cost-cutting as a way of increasing manufacturing competitiveness is a strategy that is

A. flawed and ruinous

B.shortsighted and diffucult to sustain

C.popular and easily accomplished

D.useful but inadequate

E.misunderstood but promising