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破碎机传动电机温升应＜80℃。（)

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When you walk into a National Forest, you really believe you are the first person who has ever been here. Funny thing is, you are not.
These forests have been used for over a hundred years. From this timber stand, settlers used wood to build their homes. And ties were cut for the railroad. Hard to believe, isn't it？
But that's the Miracle of the Forest. With careful management these forests have renewed themselves, year after year, providing us with all kinds of benefits. And that's why we call them "Forever Forests".
Come to see for yourself! And get involved with the new "Forests For Us" program and tell people all about the Miracle of the Forest.
For more information write: Forest for US, P.O. Box 2000, Washington, DC 20013.
Miracle of the Forest
Duration that has been used:【46】.
Usage of the forest: 1.【47】for the building of houses
2.【48】for the railroad
The reason that we call them "Forever Forests":
1.【49】themselves with careful management
2. providing us with lots of【50】year after year

Even as the U.S. Senate debates a vast new tax and spend regime in the name of fighting climate change, a more instructive argument was taking place in Copenhagen, Denmark. Some of the world's leading economists met earlier this month to decide how to do the most good in a world of finite resources.
Scarcity is a core economic concept. There isn't an unlimited amount of money to be spent on every problem, so choices have to be made. The question addressed by the Copenhagen Consensus Center is what investments would do the most good for the most people. The center's blue-ribbon panel of economists, including five Nobel laureates, weighed more than 40 proposals to improve the world by spending a total of $75 billion over the next four years.
What would do the most good most economically？ Supplements of vitamin A and zinc for malnourished children.
Number two？ A successful outcome to the Doha Round of global flee-trade talks.
Global warming mitigation？ It ranked 30th, or last, right behind global warming mitigation research and development.
On the benefits of freer trade, it was estimated that a successful Doha Round could generate up to $113 trillion in new wealth during the 21st century, at a cost of $420 billion or less from inefficient industries going bust.
Meanwhile, providing vitamin A and zinc would help some 112 million children in sub-Saharan Africa and South Asia for merely $60 million a year. The minerals would help prevent blindness and stunted growth—increasing lifetime productivity by an estimated $1 billion. Similar if not quite so bountiful returns apply to investments in iron supplements, salt iodization and deworming, all low-cost measures that the economists in Copenhagen ranked highly.

要显示或关闭Excel应用程序窗口中的“格式”工具栏，应使用_________菜单下的“工具栏”子菜单。

根据以下材料，回答下面的题目
远东公司为一般纳税人，2013年6月1日“应交税费”总账科目贷方余额为86000元。2013年6月1日部分明细科目的余额如下：“应交税费一一应交增值税”科目借方余额为28600元，“应交税费——未交增值税”科目贷方余额为54000元。远东公司2013年6月份发生的有关经济业务如下：
5日，购人生产用原材料一批，增值税专用发票注明的价款为40000元，增值税为6800元，材料已验收人库，货款用银行存款支付。
8日，以银行存款上交上月未交增值税。
15日，销售产品一批，金额为285000元，增值税为48450元，所有款项均以银行存款收讫。
20日，因管理不善，损毁原材料一批，相应的增值税额为8500元。
25日，用银行存款缴纳所得税10000元。
26日，用银行存款缴纳本月增值税20000元。
30日，结转本月未交增值税。
对于5日购人生产用原材料一批的会计分录，正确的是（）。