问题
单项选择题
急性心肌梗死与急性非特异性心包炎的鉴别诊断中，对前者有意义的是（）
A.发热与心前区疼痛同时出现
B.心电图普遍导联S-T段弓背向上抬高
C.呼吸及咳嗽时疼痛出现
D.心电图有异常Q波出现
E.心前区心包摩擦音
答案
参考答案：D
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急性心肌梗死与急性非特异性心包炎的鉴别诊断中，对前者有意义的是（）
A.发热与心前区疼痛同时出现
B.心电图普遍导联S-T段弓背向上抬高
C.呼吸及咳嗽时疼痛出现
D.心电图有异常Q波出现
E.心前区心包摩擦音
参考答案：D
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| Life gets noisier every day and very 1 people can be free from noise of some kind or another. Whether you live 2 the center of a modern city or a village far away---the chances that you will 3 by planes, cars, radios, etc, are almost everywhere. We seem 4 be used to noise, too. Some people feel quite lonely without background music while they are working. Tests have shown that total silence can be very frightening experiences. 5 , some people enjoy 6 to pop music which is very loud, and this can do harm to their ears. The noise level in some places is far above the usual safety level for heavy industrial areas. One recent report about 7 said that although 8 people say that any noise disturbs their attention, only a sudden change in the level of noise really affects people's attention. It goes on to say that a background noise, which doesn't change too much. Music, for example, may even help people to pay attention. People are testing ways to make 9 noise. There are even laws controlling noise. We cannot return to the "good old days" of peace and quiet. But we can make less noise---if we shout 10 about it. | ||||
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