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问题 多项选择题

Ⅱ类计量装置应配备的有功电能表为（）；无功电能表为（）；电压互感器为（）；电流互感器为（）。

A、0.5S级或0.5级

B、2.0级

C、0.2级

D、0.5S级或0.5级

E、0.2S或0.2级

答案

参考答案：A, B, C, E

单项选择题

原保险人严格按照自留额操作业务时，下列哪种情况仍会影响原保险人的财务稳定性？（）

A.业务质量较差或出现一个风险单位的全损

B.业务数量较多或出现多个风险单位的全损

C.业务质量较差或出现巨灾事故

D.业务数量较多或出现巨灾事故
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单项选择题

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 spray, using 50 to 70 percent less pesticide than they (13) would.

The bad news is that Paley’s company closed down in 1984, after only three years. Farmers (14) the new technology and long-term backers were hard (15) . But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to (16) into operation. Agriculture experts have no doubt about the technology works. "This technique can be used (17) 75 percent of agricultural land in the United States," says George Oerther of Texas A＆M. Ray Jackson, who recently retired from the Department of Agriculture, thinks (18) infrared crop scanning could be adopted by the end of the decade. But (19) Paley finds the financial backing (20) he failed to obtain 10 years ago.

7（）

A. more than

B. less than

C. rather than

D. other than
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