推 yesican:ok 我懂了 感謝你!! 03/19 21:41
※ 引述《yesican (yeah)》之銘言：
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.
Which of the following is a consideration in favor of the company's
^^^^^
implementing its plan to develop the prototype ?
(A) There is a considerable degree of variation in shade of color between
weeds of different species.
(B) The shade of color of some plants tends to change appreciably over the
course of their growing season.
(C) When crops are weeded manually, overall size and leaf shape are taken
into account in distinguishing crop plants from weeds.
(D) Selection and genetic manipulation allow plants of virtually any species
to be economically bred to have a distinctive shade of color without
altering their other characteristics.
(E) Farm laborers who are responsible for the manual weeding of crops carry
out other agricultural duties at times in the growing season when extensive
weeding is not necessary.
Ans: (D)
因為這個機器能分辨種子顏色和形狀.然後因此可以減少成本
so哪個選項能favor公司的計畫
因為機器能夠區分出植物的顏色和形狀
so只要植物的言色和形狀有關的就是support選項
我選的答案是C
D選項怎麼看都看不懂
懇請高手指點迷津
感謝!!
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