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 satelities, physicist Stephen Paley came up with a quick way to take
the temperature of crops to determine which ones were 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 int A. the lack of official support B. its high cost C. the lack of financial support D. its failure to help increase production
更多"Even plants can run a fever, especi"的相关试题:
[单项选择]
Even plants can run a fever, especially
when they are under attack by insects or disease. But (71)
humans, plants can have their temperature (72) from
3,000 feet away—straight up. A decade ago, (73) the infrared
(红外线的) scanning technology developed for military purpose and other satellites,
physicist Stephen Paley (74) a quick way to take the
temperature of crops to determine (75) ones are under stress.
The goal was to let farmers (76) target pesticide spraying
(77) rain poison on a whole field, which (78)
includes plants that don’t have the pest problem. Even
better, Paley’s Remote Scanning Services Company could detect crop problem
before they became (79) to the eye. Mounted on a plane flown
at 3,000 feet (80) , an infrared scanner measured the heat
emitted by crops. The A. where B. which C. how D. when
[单项选择]
Even plants can run a fever, especially when they are under attack by insects or disease. But (1) humans, plants can have their temperature (2) from 3,000 feet away—straight up. A decade ago, (3) the infrared scanning technology developed for military purpose and other satellites, physicist Stephen Paley (4) a quick way to take the temperature of crops to determine (5) ones are under stress. The goal was to let farmer (6) target pesticide spraying (7) rain poison on a whole field, which (8) include plants that don’t have the pest problem.
Even better, Paley’s Remote Scanning Services Company could detect crop problem before they became (9) to the eye. Mounted on a plane flown at 3,000 feet (10) , an infrared scanner measured the heat emitted by crops. The data were (11) into a color-coded map showing (12) plants were running "fevers". Farmers could then spot spr A. where B. which C. how D. when
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