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【单选题】
Green Power Youve insulated the attic, installed triple-glazed windows, and bought high-efficiency appliances. Can you make your home any more eco-friendly? For an increasing number of Americans, the answer is yes. You can let nature help cut your utility bill. It may be as simple as replacing outdoor lights with solar-powered fixtures or signing up for your utilitys 'green power' program. Thanks to rapid improving technology and government subsidies, thousands of Americans living in remote locations are finding it can be cheaper to use the sun and wind than fossil fuels. However, dont cut your ties to the local utility just yet. (A)While renewable energy wont replace coal and natural gas soon (or ever, critics contend), consumers have more choices in their energy mix than ever before. (B)And theyre not at all whole-bran environmentalists: Roldan Montalvo runs a gas station here in Hebbronville, Texas. (C)But when he wanted to bring electricity to his cabin eight miles out of town, he went solar. The reason was simple. The utility company wanted $100000 to extend its electric line to his cabin. (D)Mr. Montalvo paid less than $8000 for his solar system, 'Its all right so far,' he says, looking up at the three solar panels that run a few lights, a fan, and a TV inside. 'I can run power tools.' Others, of course, take a more enthusiastic line. 'There is a new focus on renewable.' says Thomas White, chairman and chief executive of Enron Renewable Energy Corporation, which has completed the worlds largest wind farm in Minnesota. 'My feeling is that we are at the point in time where the personal computer was in the late 70s,' adds Mac Moore, Director of Business Development for BP Solar, one of the largest manufacturers and marketers of solar electric systems in the world. 'Over the next 10 years, if things go well, theres going to be a revolutionary change in the way that we obtain power.' Wind power represents an even more compelling argument for remote homeowners. Turbines have become so much more efficient over the past decades that homeowners a quarter mile from a utility line may find it cheaper to put up a wind turbine than to pay the utility to extend its service. But for most consumers, barriers remain. For one thing, renewable energy systems are expensive to install and require more than a decade before consumers see a payback. Even a good deal on solar panels in a high-sun area would still cost a typical homeowner 30 cents a kilowatt hour, explains the CEO of Strategy Unlimited, a technology-research firm in Mountain View, Calif. Thats far above the 6 to 15 cents that Americans typically pay their local utility, he adds. Small-scale wind turbines are much more competitive—anywhere from 8 to 15 cents a kilowatt-hour, says Mike Bergey, President of Bergey Windpower in Norman, Oklahoma. But they still require a $30000 to $35000 investment up front and it would take most homeowners 15 to 20 years before theyd see any payback. There are other drawbacks. Since these systems only produce energy intermittently, theres no guarantee homeowners can store enough energy to run their homes when the sun isnt shining or the wind isnt blowing. Then theres aesthetics. Will the neighbor accept those solar panels on your roof? Do you want a 100-foot-high wind turbine humming in your backyard like a muffled helicopter? Thats why companies like Bergey Windpower are targeting rural residents in the United States—especially those in states such as California, where the government will pay up to half the cost of installing renewable-energy systems. The word insulate in Paragraph 1 is closest in meaning to ______.
A.
separate
B.
decorate
C.
install
D.
expand
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【单选题】下列关于粉碎过程的叙述中,错误的是
A.
氧化性药物和还原性药物可以混合粉碎
B.
贵重药物应单独粉碎
C.
粉碎过程应及时筛去细粉以提高效率
D.
性质及硬度相近的药物可混合粉碎
【单选题】04-142自动扶梯梳齿板两侧的间隙每边不应大于( )mm。
A.
0.4
B.
0.6
C.
0.8
D.
1.0
【单选题】某企业对账面原价为110万元,累计折旧为70万元的某一项固定资产进行清理。清理时发生的清理费用5万元,清理收入80万元,增值税12.8万元。该固定资产的清理收入( )万元。
A.
31
B.
35
C.
41
D.
45
【单选题】下列关于过筛过程的叙述,错误的是
A.
加到药筛的物料不宜过多,以免堆积过厚
B.
物料在筛网上的运动速率越小,则过筛效率越好
C.
含水量大的物料应先适当干燥再过筛
D.
为防止粉尘飞扬,过筛时应避免振动
E.
黏性、油性较强的药粉,应掺入其他药粉一同过筛
【单选题】下列关于过筛过程的叙述,错误的是()
A.
加到药筛的物料不宜过多,以免堆积过厚
B.
物料在筛网上的运动速率越小,则过筛效率越好
C.
含水量大的物料应先适当干燥再过筛
D.
为防止粉尘飞扬,过筛时应避免振动
【单选题】964 下列关于过筛过程的叙述,错误的是( )
A.
加到药筛的物料不宜过多,以免堆积过厚
B.
物料在筛网上的运动速率越小,则过筛效率越好
C.
含水量大的物料应先适当干燥再过筛
D.
为防止粉尘飞扬,过筛时应避免振动
【单选题】某企业对账面原价为110万元,累计折旧为70万元的某一项固定资产进行清理。清理时发生清理费用5万元,清理收入80万元。该固定资产的清理净收入为______
A.
31万元
B.
35万元
C.
41万元
D.
45万元
【单选题】下列关于过筛过程的叙述 , 错误的是 ( ) 。
A.
加到药筛的物料不宜过多 , 以免堆积过厚
B.
物料在筛网上的运动速率越小 , 则过筛效率越好
C.
含水量大的物料应先适当干燥再过筛
D.
防止粉尘飞扬 , 过筛时应避免振动
E.
黏 性、油性较强的药粉 , 应掺入其他药粉一同过筛
【单选题】下列关于粉碎和过筛的叙述,错误的是( )
A.
粉碎过程主要靠外加机械力破坏物质分子的内聚力来实现的
B.
工业用标准筛常用目数来表示,即每平方英寸上筛孔的数目
C.
流能磨适用于低熔点或热敏性药物的粉碎
D.
粉碎度为固体药物粉碎前粒径和粉碎后粒径的比值
【判断题】转运和分装 transition and installment
A.
正确
B.
错误
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