[求助]GWD16-16X / 16-22

Q16X:

Certain genetically modified strains of maize produce a powerful natural insecticide.  The insecticide occurs throughout the plant, including its pollen.  Maize pollen is dispersed by the wind and frequently blows onto milkweed plants that grow near maize fields.  Caterpillars of monarch butterflies feed exclusively on milkweed leaves.  When these caterpillars are fed milkweed leaves dusted with pollen from modified maize plants, they die.  Therefore, by using genetically modified maize, farmers put monarch butterflies at risk.

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

1. Whether the natural insecticide is as effective against maize-eating insects as commercial insecticides typically used on maize are

2. Whether the pollen of genetically modified maize contains as much insecticide as other parts of these plants

3. Whether monarch butterfly caterpillars are actively feeding during the part of the growing season when maize is releasing pollen

4. Whether insects that feed on genetically modified maize plants are likely to be killed by insecticide from the plant’s pollen
5. Whether any maize-eating insects compete with monarch caterpillars for the leaves of milkweed plants growing near maize fields

答案C我選E

Which of the following, if true, does most to explain the apparently surprising result?

1. Because of the need to educate the public about its new models’ capabilities, Denoma’s advertising spending was higher than normal over the period.
2. For the period at issue, Denoma’s major competitors reported declines in revenue that were, in percentage terms, greater than Denoma’s.
3. A significant proportion of Denoma’s revenue comes from making components for other consumer-electronics manufacturers.
4. Unlike some of its major competitors, Denoma has no lines of business outside consumer electronics to provide revenue when retail sales of consumer electronics are weak.
5. During the period, consumer-electronics retailers sold remaining units of Denoma’s superseded models at prices that were deeply discounted from those models’ original prices.

答案C我選A

請指教，謝謝．