附骨疽多发生于() A.关节 B.四肢长骨 C.扁骨 D.肌肉 E.颜面

题型:单项选择题 A1/A2型题

问题:

附骨疽多发生于()

A.关节

B.四肢长骨

C.扁骨

D.肌肉

E.颜面

考点:中医外科学主治医师中医外科学(综合练习)中医外科学(综合练习)题库
题型:单项选择题 A1/A2型题

二氧化硫

A.易溶于水,主要损伤眼结膜和上呼吸道
B.难溶于水,能进入呼吸道深部
C.经肺泡进入血液后,与血红蛋白很快结合形成碳氧血红蛋白
D.对上呼吸道刺激,并对牙齿引起酸蚀症
E.是二氧化氮的二次污染物,具有强烈刺激作用

题型:单项选择题 A1/A2型题

若发电机、同期调相机尚可从其他电源获得电压,则此项电源应断开,并悬挂“禁止合闸,有人工作!”的标示牌。

题型:单项选择题 A1/A2型题

关于液相色谱与气相色谱的区别,叙述错误的是()

A.液相色谱柱与气相色谱柱可以互换使用

B.部分药物既可以用液相色谱测定,也可以用气相色谱测定

C.不能气化的药物,可以通过衍生化后采用气相色谱测定

D.液相色谱质谱联用仪与气相色谱质谱联用仪的离子源是相同的原理

E.气相色谱质谱联用仪可以直接用于不挥发性物质的测定

题型:单项选择题 A1/A2型题

下列属于额外福利的是()

A.支付的奖金

B.个人医疗保险

C.公司汽车

D.抵押或贷款工具

题型:单项选择题 A1/A2型题

It’s a cliche—but true—that a huge obstacle to a per economic recovery is the lack of confidence in a p recovery. If consumers and businesses were more confident, they would be spending, hiring and lending more freely. Instead, we’re deluged with reports suggesting that, because the recession was so deep, it will take many years to regain anything like the pre-crisis prosperity. Just last week, for example, the McKinsey Global Institute released a study estimating that the country needs 21 million additional jobs by 2020 to reduce the unemployment rate to 5 percent. The study was skeptical that this would happen. Pessimism and slow growth become a vicious cycle.

Battered confidence most obviously reflects the ferocity and shock of the financial collapse and the ensuing recession, including the devastating housing collapse. But there’s another, less appreciated cause: disillusion with modern economics. Probably without realizing it, most Americans had accepted the fundamental promises of contemporary economics. These were: First, we know enough to prevent another Great Depression; second, although we can’t prevent every recession, we know enough to ensure sustained and, for the most part, p recoveries. These propositions, endorsed by most economists, had worked themselves into society’s belief structure.

Embracing them does not preclude economic disappointments, setbacks, worries or risks. But for most people most of the time, it does preclude economic calamity. People felt protected. If you stop believing them, then you act differently. You begin shielding yourself, as best you can, against circumstances and dangers that you can’t foresee but that you fear are there. You become more cautious. You hesitate more before making a big commitment-buying a home or car, if you’re a consumer; hiring workers, if you’re an employer; starting a new business, if you’re an entrepreneur; or making loans, if you’re a banker. Almost everyone is hunkered down in some way.

One disturbing fact from the McKinsey report is this: The number of new businesses, a traditional source of jobs, was down 23 percent in 9,010 from 2007; the level was the lowest since 1983, when America had about 75 million fewer people. Large corporations are standoffish. They have about $2 trillion of cash and securities on their balance sheets, which could be used for hiring and investing in new products.

It’s not that economics achieved nothing. The emergency measures thrown at the crisis in many countries exceptionally low interest rates, "stimulus" programs of extra spending and tax cuts—probably averted another Depression. But it’s also true that there’s now no consensus among economists as to how to strengthen the recovery. Economists suffer from what one of them calls "the pretense-of-knowledge syndrome." They act as if they understand more than they do and presume that their policies, whether of the left or right, have benefits more predictable than they actually are. It’s worth remembering that the recovery’s present slowdown is occurring despite measures taken to speed it up.

So modern economics has been oversold, and the public is now disbelieving. The disillusion feeds stubbornly low confidence.

A mistaken idea of modern economics is that()

A. confidence and economic recovery are closely related

B. beliefs in economic recovery need to be constantly boosted

C.economic depressions never happen when people are confident

D. sustained growth can be ensured with proper economic measures

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