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【单选题】
Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide on the best choice. 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 (红外线的) 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 cold detect crop problems before they became visible to the eye. Mounted on a plane flown at 3,000 feet at night, an infra-red scanner measured the heat emitted by crops. The data were transformed into a color-coded map showing where plants were running 'fevers'. Farmers could then spot-spray, using 50 to 70 percent less pesticide than they otherwise would. The bad news is that Paley's company closed down in 1984, after only three years. Farmers resisted the new technology and long-term backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infra-red scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. 'This technique can be used on 75 percent of agricultural land in the United States,' says George Other of Texas A&M. Ray Jackson, who recently retired from the Department of Agriculture, thinks remote infra-red crop scanning could be adopted by the end of the decade. But only if Paley finds the financial backing which he failed to obtain 10 years ago. Plants will emit an increased amount of heat when they are ______.
A.
sprayed with pesticides
B.
facing an infra-red scanner
C.
in poor physical conditions
D.
exposed to excessive sun rays
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举一反三
【简答题】尖轨动程,规定在距尖轨端()mm的转辙杆中心处量取。
【单选题】下列不属于目标管理特征的是
A.
目标由上下级共同制定,下级在制定中有充分的自主权
B.
强调下级目标与对上级目标的服从
C.
成果评价方法是根据上下级制定的评价标准由员工自我评价工作成果并作出相应的改进
D.
让员工自己当老板,自己管理自己
【单选题】下列不属于目标管理特征的是 :
A.
目标由上下级共同制定,下级在制定中有充分的自主权
B.
重视工作成果而不是工作行为本身。
C.
成果评价方法是根据上下级制定的评价标准由员工自我评价工作成果并作出相应的 改进
D.
让员工自己当老板,自己管理自己
【简答题】甲公司与乙公司签订了一份联营协议,规定甲公司与乙公司联营期限为2年,期限届满时甲公司一次性支付乙公司联营出资的全部资金,并按40%支付利润。同时,丙公司明知这一情况而与乙公司签订保证协议,对联营协议提供担保。下列说法正确的是: (    ) A.甲公司与乙公司之间的联营协议无效 B.丙公司与乙公司之间的保证合同无效 C.丙公司根据其过错承担相应的担保责任 D.丙公司、甲公司共同对乙公司承担返还本金...
【简答题】第三方发生暗室逢灯sa
【单选题】波长为500nm的光沿x轴正方向传播,波长的不确定梁为 nm,则光子坐标的不确定量为
A.
1m
B.
2m
C.
2.5m
D.
5m
【单选题】王女士,36岁,子宫切除术后3天拔除导尿管后已10 小时未排尿,下腹部胀痛,查体腹部叩诊实音。医嘱行导尿术 。 以下导尿操作中错误的是
A.
按无菌技术操作,以免逆行感染
B.
插导尿管时,动作应轻,以防损伤尿道黏膜
C.
应注意患者心理,照顾其自尊心,如有条件应以屏风围住病床
D.
插管时如误插入阴道,应立即拔出重新再由尿道插入
E.
膀胱高度膨胀,应分次放尿
【单选题】王女士,36岁,子宫切除术后3天拔除导尿管后已10 小时未排尿,下腹部胀痛,查体腹部叩诊实音。医嘱行导尿术。该患者膀胱高度膨胀,因一次放尿过多导致了虚脱,其原因是( )
A.
腹压急剧下降,致大量血液滞留于腹腔血管内
B.
膀胱内压突然降低,导致膀胱黏膜急剧充血
C.
操作过程中损伤尿道内口
D.
尿道黏膜发生损伤
E.
操作中损伤输尿管
【单选题】下列不属于目标管理特征的是
A.
目标由上下级共同制定,下级在制定中有充分的自主权
B.
强调下级目标与对上级目标的服从
C.
成果评价方法是根据上下级制定的评价标准由员工自我评价工作成果并作出相应的改进
D.
让员工自己当老板,自己管理自己
【单选题】尖轨动程为尖轨尖端非作用边与基本轨作用边之间的拉开距离,规定在距尖轨端( )的转辙杆中心处量取。
A.
142mm
B.
152mm
C.
180mm
D.
380mm
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