[語文] GWD TN-11 CR

[eric810 (eric)]

Scientists have made genetic modifications to cotton to increase its
resistance to insect pests. According to farmers’ report, the amount of
insecticide needed per acre to control insect pests was only slightly lower
for those who tried the modified seed than for those who did not. Therefore,
since the modified seed costs more than ordinary seed without producing
yields of higher market value, switching to the modified seed would be
unlikely to benefit most cotton farmers economically.

Which of the following would it be most useful to know in order to evaluate
the argument?

A. Whether farmers who tried the modified cotton seed had ever tried growing
other crops from genetically modified seed.
B. Whether the insecticides typically used on ordinary cotton tend to be more
expensive than insecticides typically used on other crops.
C. Whether for most farms who grow cotton it is their primary crop
D. Whether the farmers who have tried the modified seed planted as many acres
of cotton, on average, as farmers using the ordinary seed did.
E. Whether most of the farmers who tried the modified seed did so because
they had previously had to use exceptionally large quantities of insecticide.

   Ans is B,請教各位大大,為何要與其他作物的使用量比較
            非常感謝

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推 pentimento:「其他作物」暗指「機改作物」，若明說就太簡單了。
→ eric810:tks!!