所谓财务净现值率是指（）之比，其经济含义是单位投资现值所能带来的财务净现值，是一个考

小丽今年是a岁，爸爸的年龄是她年龄的3倍．8年后，爸爸年龄是小丽年龄的几倍？

患者，男性，56岁，患胃溃疡15年，近3个月复发，经8周内科药物治疗无效。

提示：该患者便隐血试验持续阳性提问：做哪项检查有助确诊？（）

A.胃镜+活检

B.钡透

C.腹部平片

D.胸腹联透

E.胃液分析

Directions: Read the following passage. Answer the questions according to the information given in the

passage and the required words limit.

     Even plant 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 (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 sent

out 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 that 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 (改进) ininfrared 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, 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. In what situation will plants have a fever? (No more than 8 words)

    ________________________________________________________________________________________

2. How can we apply pesticide spraying precisely? (No more than 10 words)

    ________________________________________________________________________________________

3. Why may infrared scanning technology by brought back into operation? (No more than 13 words)

    ________________________________________________________________________________________

4. What is the biggest problem that might prevent bringing infrared scanning technology back? (No more than

    7 words)

    ________________________________________________________________________________________

杭州图书馆对所有读者免费开放，包括乞丐和拾荒者，这条消息引起热议。有识者认为杭图的做法击中了“社会软肋”。请结合下列材料，探究这里暴露的到底是哪些“社会软肋”？（4分）

面对杭图的做法，部分高端读者选择离开。精英们担忧，如果是读书，当然可以；如果乞丐和拾荒者是支聊天，休息，孵空调呢？建议设立专区和附加门槛条件。乞丐也是城市的管理者纠结，这些年关于乞丐的新闻经常是某地警方提醒市民谨防乞丐行骗，某市政府为迎接国际会议把全市乞丐“集中起来”直到会议结束之类。

杭图馆长褚树青说：“图书馆是一种公 * * 品，必须遵循公平原则。我无权拒绝他们入内读书。但您有权选择离开。”阿根廷国家图书馆馆长博尔赫斯有一句名言：“如果有天堂，天堂应该就是图书馆的模样。”

政府投巨资建的图书馆，很多在冷清中坚守，要么书很少，要么人很稀，甚至将部分房间改为店铺出租给私人。服务质量难如人意，环境建设、管理不到位。（《中华活页文选》）

答：                                   。

甲硝唑最常见的不良反应是

A．腹痛

B．呕吐

C．口腔金属味

D．腹泻

E．厌食