问题 选择题

“ * * ”给我们国家和民族的最深刻历史教训是

A.要坚持“百花齐放、百家争鸣”的文艺方针

B.要进一步加强社会主义民主和法制建设

C.要防止任何形式的个人崇拜和教条主义

D.要严防西方国家的“和平演变”战略

答案

答案:B

题目分析:“ * * ”是中 * * 历史的一场浩劫,“ * * ”爆发的主要原因在于我们缺乏社会主义民主和法制建设,导致个人崇拜严重,脱离实际,法制被践踏,民主被破坏等。所以答案为B。

点评:此题难度中等,主要考查学生对“ * * ”的认识和客观正确的理解,考查了学生的分析和评价能力,解题时要特别注意从理论角度剖析。

单项选择题
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.

16()

A. get off

B. get out

C. get away

D. get back