题目:
微小病变肾病()
A.肾小球弥漫性毛细血管内皮细胞增生,炎症细胞浸润
B.肾小囊新月体形成
C.肾小球系膜区C3颗粒沉着
D.肾小球上皮细胞足突消失
E.肾小球基底膜广泛增厚
答案:
参考答案:D
微小病变肾病()
A.肾小球弥漫性毛细血管内皮细胞增生,炎症细胞浸润
B.肾小囊新月体形成
C.肾小球系膜区C3颗粒沉着
D.肾小球上皮细胞足突消失
E.肾小球基底膜广泛增厚
参考答案:D
“军旗升起的地方”是江 * * 的题词,这题词纪念的是 [ ]
A.武昌起义
B.秋收起义
C.南昌起义
D.广州起义
如图所示,矩形线圈有N匝,长为a,宽为b,每匝线圈电阻为R,从磁感应强度为B的匀强磁场中以速度v匀速拉出来,那么,产生的感应电动势和流经线圈中的感应电流的大小应为( ) A.E=Bav, B.E=NBav, C.E=Bav, D.E=NBav, |
患者,女性,50岁,工人,颈肩痛伴左手麻木,咳嗽加重,右手握力减弱及做细小动作困难,检查:左手肌肉萎缩,左拇指及前臂桡侧感觉减退,腱反射减退,最可能的诊断是()
A.肩周炎
B.胸廓上口综合征
C.颈部肌肉筋膜炎
D.神经根型颈椎病
E.肌萎缩型侧索硬化症
划定生态环境评价范围的原则和依据是生态因子之间( )的关系。
A.相互依存
B.互相影响和相互依存
C.互相影响
D.互相影响或相互依存
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.
The "pretense-of-knowledge syndrome" refers to()
A. the belief of economists about bow economic things work
B. the illness that is damaging the health of today’s economy
C. the consensus that there is no quick fix for economic recession
D. the ineffective measures taken to correct the economic crisis