Q39:

Which of the following most logically completes the passage below?

Heavy rains during Centralia’s corn planting season prevented some farmers there from planting corn.  It is now the planting season for soybeans, another of Centralia’s principal crops, and those fields originally intended for corn are dry enough for planting.  Nonetheless, even though soybean prices are unusually high at present, the farmers will leave most of these fields empty rather than plant them with soybeans, since ‗‗‗‗‗‗.

1. the extensive rains have led to an increase in the price of corn

2. some Centralian farmers anticipate serious financial losses due to the extremely wet spring planting season

3. chemicals that were used to prepare the fields for corn planting would stunt the growth of soybeans

4. the majority of Centralia’s corn farmers were able to plant corn as they had intended, despite the wet planting season

5. many Centralian farmers grow both corn and soybeans

还有一道,谢谢大家了。

Q40:

Until mow, only injectable vaccines against influenza have been available.  Parents are reluctant to subject children to the pain of injections, but adults, who are at risk of serious complications from influenza, are commonly vaccinated.  A new influenza vaccine, administered painlessly in a nasal spray, is effective for children.  However, since children seldom develop serious complications from influenza, no significant public health benefit would result from widespread vaccination of children using the nasal spray.

Which of the following is an assumption on which the argument depends?

1. Any person who has received the injectable vaccine can safely receive the nasal-spray vaccine as well.

2. The new vaccine uses the same mechanism to ward off influenza as jnjectable vaccines do.

3. The injectable vaccine is affordable for all adults.

4. Adults do not contract influenza primarily from children who have influenza.

5. The nasal spray vaccine is mot effective when administered to adults.