中频电疗法禁用于什么部位A．头部B．心前区C．无禁忌D．眼部E．会阴部

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有多余选项。

The Dark Age of Greece

小题1:Among early civilizations, we call the low points "dark ages", because civilizations often dropped to such a low level that it is hard to get an accurate picture of their history during these periods. During a dark age, a civilization may not have produced monuments, statue, or other objects which we use to learn about early civilizations.

One' of the most important dark ages was the dark age of Greece,which lasted from about 1100 BC to 900 BC. Prior to-that-time,Greece had a highly advanced society called the Mycenaean civilization. The Mycenaeans were a trading civilization小题2:In fact, the Mycenaean civilization was so important that when it collapsed in the 12th centuryBC,most other civilizations in the region collapsed as well.The next 200 years are like a blank page to  historians and we know very little about this period.小题3:The collapse of the Mycenaeans brought an end to writing in the area, and thus an end to the written records historians rely on.

The little that we know about this period has been learned from archaeology. It seems that civilization became much less advanced. The pottery from this period is much simpler and less artistic. This suggests that there was lack of wealthy people to buy higher quality products. 小题4:   This would suggest a large decrease in population, possibly due to a widespread lack of food and consequent starvation.

Sometime around 800 BC, the Greeks began to emerge from this dark age, most probably due to the influence of other civilizations. They had lost their early writing system, but began to use the writing system of the Phoenicians at this time.小题5:Over the next 300 years, their civilization continued to rise, and their dark age was forgotten.

A．Many civilizations undergo a series of high points and low points during their history.

B．Many early civilizations underwent dark ages, but Greece never recovered from its dark age.

C．They began constructing larger cities and trading with their neighbors again.

D．Another interesting point is that most of the large cities of earlier time periods appear to have been abandoned in favor of much smaller settlements.E.Many pieces of evidence suggest that there was a huge increase in population during the dark age of Greece.

F.and they did much to spread their culture across the eastern Mediterranean.

G.One major reason for this is that writing basically stopped.

患者，男，67岁，反复咳嗽、咳痰30余年，心悸、气促、下肢间歇性水肿2年，病情加重伴畏寒发热6天入院。体检：T38.3℃，呼吸急促，口唇发绀，双肺叩诊过清音，中下肺有湿啰音，心率115次／分，心律齐，无杂音，双下肢重度水肿。

为明确诊断首选的检查是（）

A.胸部X线检查

B.心电图检查

C.动脉血气分析

D.痰培养及药敏试验

E.血胆固醇和甘油三酯测定

完成一定合格产品所需材料的数量标准( )。

A．劳动定额
B．机械消耗定额
C．施工定额
D．材料定额

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