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【单选题】

Surveys find entrenched(根深蒂固的)pessimism over the country"s economic outlook and overall trajectory(轨道). In the latest Wall Street Journal poll, 63% of the respondents said the US is on the wrong track. It"s not difficult to see why. Set aside the gridlock in Washington for a moment and appreciate the weakness of the economic recovery: Households whose finances were too weak to spend. Large numbers of unemployed workers who couldn"t do so either. Younger Americans who couldn"t afford their own homes. Banks that were too broken to lend. Yet nearly a year ago, I wrote an essay for Time suggesting that the economy could surprise on the upside. That hypothesis looks even more valid today. Despite the pessimistic mood, America is experiencing a profound comeback. Yes, too many Americans are out of work and have been for far too long. And yes, there is a huge amount of slack to make up. In fact, if the 2008 collapse had not happened, the US GDP would be $ 1 trillion—or more than 5%—higher than it is today. But in terms of the growth outlook, the news is good. Goldman Sachs and many private-sector forecasters project a 3. 3% growth rate for the remainder of 2014. The first half of 2014 saw the best job-creation rate in 15 years. Total household wealth and private employment surpassed 2008 levels last year. Bank loans to businesses exceeded previous highs this year. And income growth will soon improve too. America is finally returning to where it was seven years ago. As halting as the US recovery has been, the economy is now leaner and more capable of health-y, sustained growth through 2016 and beyond. The US outlook shines compared with that of the rest of the industrialized world, as Europe and Japan are stagnant. The 2008 economic cr and Great Recession forced widespread restructuring throughout the US economy—not unlike a company gritting its teeth through a lifesaving bankruptcy. Manufacturing costs are down. The banking system has been recapitalized. The excess and abuse that defined the housing market are gone. And it"s all being turbocharged by an energy boom nobody saw coming. We learn from the last paragraph that______.

A.
nobody has predicted the energy boom before
B.
Europe and Japan"s outlook is better than America
C.
the 2008 economic cr has destroyed US Economy
D.
the American economy has been stagnant since 2008
题目标签:轨道根深蒂固
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【单选题】sp1杂化轨道的几何构型是()

A.
直线形
B.
平面三角形
C.
正四面体形
D.
锥形

【多选题】对轨道的基本要求是()。

A.
铺轨质量好
B.
轨道维修好
C.
保证线路畅通
D.
车辆安全运行

【多选题】无砟轨道

A.
无砟轨道与有砟轨道相比,无砟轨道养护维修工作量小,结构耐久性好,轨道使用寿命长(60年以上) 。
B.
初期土建工程投资相对较小,节省工程总造价。
C.
无砟轨道与有砟轨道相比,无砟轨道养护维修工作量小,结构耐久性好,轨道使用寿命长(50年以上) 。初期土建工程投资相对较小,节省工程总造价。
D.
无砟轨道与有砟轨道相比,无砟轨道养护维修工作量小,结构耐久性好,轨道使用寿命长(60年以上) 。初期土建工程投资相对较小,节省工程总造价。

【单选题】轨道线的突破意味着()。

A.
反转
B.
趋势加速前进
C.
横向整理
D.
持续原有趋势,并保持原有速度

【多选题】浮置板轨道按支承条件不同分为

A.
橡胶套筒轨道
B.
钢弹簧浮置板轨道
C.
橡胶支座浮置板轨道
D.
长钢轨支撑块轨道