Nuclear Age The Oyster Creek nuclear plan

题型:单项选择题

问题:

Nuclear Age


The Oyster Creek nuclear plant in New Jersey opened when the Beatles were still together, and since 1969 its single 645-MW boiling-water reactor has provided enough energy to power 600,000 homes annually. But the oldest nuclear plant in the U.S. will be retired a little (26) Last year its owner, Exelon, announced that it would (27) Oyster Creek in 2019, 10 years ahead of schedule. The reason: the (28) plant costs too much to keep running (29) .
The Fukushima Daiichi nuclear disaster has focused new attention on the (30) future of the American atomic sector. But the U.S. nuclear industry was already facing a very (31) problem: its aging fleet of reactors. Nuclear plants were built with 40-year licenses that can theoretically be (32) to 60 or even 80 years. Half the country’s 104 reactors are more than 30 years old and (33) middle age. So far, 62 plants have been (34) 20-year extensions, and 20 more have applications pending. (35) like the one in Fukushima, the oldest plants in the U.S. (36) to have fewer safety measures. If regulators crack down, operators could (37) -as Exelon did with Oyster Creek—that upgrading is not worth the 38 and shut down the plants If no new nuclear plants are built to (39) them, nuclear could fade into obsolescence. Ironically, that could have (40) environmental effects. A report by the Breakthrough Institute, an energy think tank, found that replacing all U.S. nuclear (41) a mix of coal and gas would raise carbon (42) 9% by 2030. "We need to understand that there would be (43) to pulling back on nuclear," says Michael Levi, a senior fellow for energy and the environment at the Council on Foreign Relations. (44) a great athlete, nuclear power may be (45) after it retires.

A. aim B. tend C. choose D. seek

考点:BFT考试(全国出国培训备选人员外语水平考试)BFT考试(全国出国培训备选人员外语水平考试)
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—I'm afraid I can't finish the book within this week.

—______.[ ]

A. Please go ahead

B. That's right

C .Not at all

D. Take your time

题型:单项选择题

下列推论正确的是(  )

A.S(g)+O2(g)===SO2(g) ΔHa;S(s)+O2(g)===SO2(g) ΔHb;则ab

B.C(石墨,s)===C(金刚石,s) ΔH=+1.9 kJ/mol,则可判定石墨比金刚石稳定

C.NaOH(aq)+HCl(aq)===NaCl(aq)+H2O(l) ΔH=-57.4 kJ/mol,则含20 g NaOH的溶液与稀盐酸完全反应,放出的热量为28.7 kJ

D.CaCO3(s)===CaO(s)+CO2(g) ΔH>0,则该反应任何温度下都能自发进行

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()是可燃液体蒸发出的可燃蒸气与空气形成的混合物与火源接触时发生闪燃的最低温度。

A、燃点

B、闪点

C、着火点

D、自燃点

题型:单项选择题

同一导联上室早形成不同,配对间期常不等见于()

A.室性早搏

B.交界性早搏

C.成对的室性早搏

D.多源性室早

E.室性并行心律

题型:单项选择题

书以性质分类为:()

A、著

B、编著

C、编

D、译

E、编译

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