下列说法哪项不正确 A．营养不良分为消瘦型、水肿型及混合型3种 B．水肿型营养不良多

某公司冰箱广告语——“零度不结冰，长久保持第一天新鲜”涉嫌夸大宣传，违反《反不正当竞争法》，被北京海淀区工商部门立案查处。冰箱广告夸大宣传的不正当竞争行为

A．表明市场调节具有自发性

B．是市场调节具有滞后性的体现

C．体现出市场调节具有盲目性

D．有利于实现商品的使用价值

国共两党第一次合作实现的标志是 [ ]

A、中共一大

B、中共三大

C、国民党一大

D、国民党二大

阅读理解

     Even plants can run a fever, especially when they're under attack by insects or disease. But unlike

human, plants can have their temperature taken from 3,000 feet away-straight up. A decade ago,

adopting 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 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 colourcoded map showing where plants

were running "fevers". Farmers could then spotspray, 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 longterm backers were hard to find. But with the renewed concern about

pesticides on produce, and refinements in infrared 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 Oerther of Texas A & M. Ray Jackson, who recently retired from the Department of Agriculture, thinks remote infrared 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.

1. Plants will send out an increased amount of heat when they are________.

A. facing an infrared scanner

B. sprayed with pesticides

C. in poor physical condition

D. exposed to excessive sun rays

2. In order to apply pesticide spraying precisely, we can use infrared scanning to________.

A. estimate the damage to the crops

B. draw a colourcoded map

C. measure the size of the affected area

D. locate the problem area

3. Farmers can save a considerable amount of pesticide by________.

A. resorting to spotspraying

B. transforming poisoned rain

C. consulting infrared scanning experts

D. detecting crop problems at an early stage

4. The application of infrared scanning technology to agriculture met with some difficulties-________.

A. its high cost

B. the lack of official support

C. the lack of financial support

D. its failure to help increase production

5. Infrared scanning technology may be brought back into operation because of________.

A. full support from agricultural experts

B. growing concern about the excessive use of pesticides on crops

C. the forceful promotion by the Department of Agriculture

D. the desire of farmers to improve the quality of their produce

ARDS共同性病理变化有（）。

A.气道阻塞

B.肺部感染

C.肺不张

D.急性心力衰竭

E.肺血管内皮和肺泡损害，肺间质水肿

某金工车间为单层单跨钢筋混凝土排架结构房屋，跨度为18m，柱距6m，车间总长60m，吊车梁为装配式钢筋混凝土构件，其跨度与柱距相同，车间内安装有两台起重量为5t的A5级电动吊钩桥式吊车，吊车跨度l_k=16.5m，车间的平面、剖面及柱尺寸图如题图(a)和图(b)所示。

柱A牛腿处由两台吊车最大轮压产生的最大垂直力D_max标准值为（）kN。

A．182.2

B．191.3

C．202.5

D．255.1