[填空题]The resources of the library can be helpful even when we are doing something very informal, such as trying to devise a better way to measure attitudes toward music or looking for a better way to teach Johnny to (36) by two-digit numbers. The library can be (37) helpful when we are doing something very (38) , such as writing a dissertation or preparing an article for (39) publication in a national journal. In either case, our (40) should be to use the library as a useful tool to help us (41) and solve our problem.
The following sections of this chapter will describe (42) resources available in many libraries. The (43) of readers with these different resources will vary considerably. (44) . In other cases you may be completely unfamiliar with a resource. Your goal should be to become aware of what is available and to know how to use each of these resources to help you solve the problems they are desig

Passage Five
Even plants can run a fever, especially when they’re under attack by insects or disease. But unlike humans, plants can have their temperature taken from 3,000 feet away-straight up. A decade ago, adapting the infrared (红外线) scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide (杀虫剂) spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest (害虫) problems.
Even better, Paley’s Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3,000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a color-code map showing where plants were running" fevers".
A. the lack of official support
B. its high cost
C. its failure to help increase production
D. the lack of financial support