GRE阅读逻辑练习题（9）_GRE阅读

GRE阅读逻辑练习题（9）

　　The archaeologists argument assumes which of the following about the artisans who worked in the workshops

　　 They were themselves prosperous members of a middle class.

　　 They lived near their workshops.

　　 Their products were not made from the same materials as was jewelry for the nobility.

　　 They worked full-time at making jewelry and did not engage in farming

　　 They did not take the jewelry they had made in the workshops to clients who were members of the nobility.

　　8. Over the last 40 years there has been a great increase not only in the number of agricultural pesticides in use but also in the care and sophistication with which they are used by farmers. Nevertheless, the proportion of agricultural crops lost to certain pests worldwide has increased over the same period, even when the pests concerned have not developed resistance to existing pesticides.

　　Which of the following, if true. best explains how improvements in pesticide use have been accompanied by greater losses to certain pests?

　　 Some dangerous but relatively ineffective pesticides common 40 years ago are no longer in widespread use.

　　 As pesticides have become increasingly pest- specific, controlling certain pests with pesticides has turned out to cost more in many cases than the value of crop losses caused by those pests.