以下是引用lawyer_1在2005-4-9 19:38:00的发言: D通过支持证据的方式支持结论。ABC对该计划不利,显然不可能是支持。E错在结论的范围是局限于在割草时因为节省劳动力所以节省成本。E说的是全年的考虑:不割草时可以干别的。所以无关。 C. When crops are weeded manually, overall size and leaf shape are taken into account in distinguishing crop plants from weeds.
对C还有一点疑问,C是什么意思?怎么感觉是在说manual weeding的缺点,这样是不是也支持结论呢? A company plans to develop a prototype weeding machine that uses cutting blades with optical sensors and microprocessors that distinguish weeds from crop plants by differences in shade of color. The inventor of the machine claims that it will reduce labor costs by virtually eliminating the need for manual weeding. |