由于MRI是利用磁场与特定原子核的核磁共振作用所产生信号来成像的,MRI系统的强磁场

题型:单项选择题 A3/A4型题

问题:

由于MRI是利用磁场与特定原子核的核磁共振作用所产生信号来成像的,MRI系统的强磁场和射频场有可能使心脏起搏器失灵,也容易使各种体内金属性植入物移位,在激励电磁波作用下,体内的金属还会因为发热而造成伤害。不是MRI的禁忌证的是()

A.装有心脏起搏器者

B.中枢神经系统的金属止血夹

C.装有铁磁性或电子耳蜗者

D.体内有金属植入物

E.妊娠7个月

考点:放射医学技术(士)放射医学技术专业实践能力综合练习放射医学技术专业实践能力综合练习题库
题型:单项选择题 A3/A4型题

根据规定,以下行为中属于回购交易中的禁止行为包括( )。

A.银行将受托保管的债券进行回购交易

B.政策性银行借入债券从事证券回购交易

C.将回购资金用于解决短期流动需要

D.将回购资金用于固定资产投资

题型:单项选择题 A3/A4型题

将正在发音的音叉放入水中、看见水花四溅,这一现象说明发生的音叉在______;手拍桌子时会感觉痛,说明力的作用是______的.

题型:单项选择题 A3/A4型题

拉斐尔擅长画圣母像,他笔下的众多圣母充满人情和母爱,这主要体现了当时()

A..蒙昧主义思想

B.人文主义思想

C.禁欲主义思想

D.浪漫主义思想

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()业务对象主要为具有完全民事行为能力,身体健康,具备劳动生产经营能力、能恪守信用的农户或农村个体经营户,城镇个人从事农业相关的经营活动的,拥有稳定的经营场所。

题型:单项选择题 A3/A4型题

Where is love How can we find love
The past ages of man have all been carefully labeled by anthropologists. Descriptions like "Paleolithic Man", "Neolithic Man", etc. , neatly sum up the whole periods. When the time comes for anthropologists to turn their attention to the twentieth century, they will surely choose the label "Legless Man". Histories of the time will go something like this: "in the twentieth century, people forgot how to use their legs. Men and women moved about in cars, buses and trains from a very early age. There were lifts and escalators in all large buildings to prevent people from walking. This situation was forced upon earth dwellers of that time because of miles each day. But the surprising thing is that they didn’t use their legs even when they went on holiday. They built cable railways, ski lifts and roads to the top of every huge mountain. All the beauty spots on earth were marred by the presence of large car parks. "
The future history books might also record that we were deprived of the use of our eyes. In our hurry to get from one place to another, we failed to see anything on the way. Air travel gives you a bird’s eye view of the world—or even less if the wing of the aircraft happens to get in your way. When you travel by car or train a blurred image of the countryside constantly smears the windows. Car drivers, in particular, are forever obsessed with the urge to go on and on: they never want to stop. Is it the lure of the great motorways, or what And as for sea travel, it hardly deserves mention. It is perfectly summed up in the words of the old song: " I joined the navy to see the world, and what did I see I saw the sea. "The typical twentieth century traveler is the man who always says, " I’ve been there. " You mention the remotest, most evocative place names in the world like E1 Dorado, Kabul, Irkutsk and someone is bound to say," I’ve been there"—meaning, "I drove through it at 100 miles an hour on the way to somewhere else. "
When you travel at high speed, the present means nothing: you live mainly in the future because you spend most of your time looking forward to arriving at some other place. But actual arrival, when it is achieved, is meaningless. You want to move on again. By traveling like this, you suspend all experience; the present ceases to be a reality: you might just as well be dead. The traveler on foot, on the other hand, lives constantly in the present. For him traveling and arriving are one and the same thing : he arrives somewhere with every step he makes. He experiences the present moment with his eyes, his ears and the whole of his body. At the end of his journey he feels a delicious physical weariness. He knows that sound. Satisfying sleep will be his : the just reward of all true travelers.

Why does the author say "we are deprived of the use of our eyes"

A. People won’t use their eyes.
B. In traveling at high speed, eyes become useless.
C. People can’t see anything on their way of travel.
D. People want to sleep during travelling.

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