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问题 单项选择题

大量心包积液(500ml以上)用二维超声如何做半定量测定()

A．无回声区包绕心室前、外、后方及心尖部，心室前、后方无回声区≥10mm

B．心包明显增厚

C．只心室前方出现明显无回声区

D．只心室后方出现明显无回声区

E．心包脏层与壁层间有明显粘连表现

答案

参考答案：A

问答题

流行性出血热休克期的治疗原则是什么？
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单项选择题

As the pace of life continues to increase, we are fast losing the art of relaxation. (1) you are in the habit of rushing through life, being on the go from morning till night, it is hard to (2) down. But relaxation is (3) for a healthy mind and body.Stress is a (4) part of everyday life and there is no way to (5) it. In fact,it is not the bad thing that it is often supposed to be. A (6) amount of stress is important to provide motivation and give (7) to life. It is only when the stress gets out of control (8) it can lead to poor performance and (9) health.The amount of stress a person can bear(10) very much on the individual. Some people are not afraid of stress, and such (11) are obviously chief material for managerial responsibilities. Others lose heart at first (12) of unusual difficulties. When exposed to stress, in (13) form, we react both chemically and physically. In fact we (14) a choice between escape and fight. But in more ancient days they made the (15) between life and death. The crises (危机)we meet today are (16) to be so extreme,but however little the stress,it requires the same response. It is when such a reaction (17) long，through continued exposure to stress，that health becomes (18) ．Such serious conditions as high blood pressure and heart diseases have (19) links with stress． (20) we canno! remove stress from our lives we need to find ways to deal with it．It would be unwise to do so even it we could．So what do you think of stressWhat is your way to deal with it.

第（14）空应选择（）

A．take

B．make

C．have

D．give
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