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女，69岁，确诊为慢性肾衰竭，近1个月间断恶心、呕吐，纳差，伴尿少，血清钾 7.2mmol/L，作为护士，对病人进行病情观察。 最主要的观察是( )。
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阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。 As she walked round the large shop, Edith realized how difficult it was to choose a suitable Christmas (36) for her father. She (37) that he were as easy to please as her mother, who was (38) satisfied with perfume. (39) , shopping at this time of the year was a most (40) job. People (41) on your feet, pushed you with their shoulders and almost (42) you over in their hurry in order to (43) something cheap ahead of you. Partly to have a rest, Edith paused in front of a counter, where some beautiful ties were on (44) . "They are (45) silk," the shop assistant told her with a smile trying to (46) her to buy one. But Edith knew from past (47) that her choice of ties hardly ever pleased her father. She moved on slowly and then, quite by chance, (48) where a small crowd of men had gathered round a counter. She found some fine pipes on sale and the (49) were very beautiful. Edith did not hesitate for long. Although her father (50) smoked a pipe once in a while, she believed this was (51) to please him. When she got home, with her small but (52) present hidden in her handbag, it was time for supper and her parents were already (53) table. Her mother was in great (54) . "Your father has at last decided to stop smoking," she told her daughter happily. Edith was so (55) that she could not say a single word.
E Beijing is to spend up to ＄20 billion to change the Chinese capital into a 21 st-century one for the 2008 Olympics. The government managed to host the 2008 Olympics. The general aim is for Beijing to have the same environmental standards as Paris, London or Washington by 2008. Hundreds of millions of dollars will be spent piping natural gas to the city’s homes and taking away dirty coal burning gradually while 60, 000 buses will be changed to liquefied gas. The money will also be used for relocating the polluting factories and building green belts. By 2008 around 90 percent of Beijing’s waste will be treated, compared to only 40 percent at present. Olympic officials have already announced that around 50 large projects are being dealt with to improve traffic congestion and cut down pollution, They include the construction of Beijing’s first light railway, a 40.5-kilometer line which is expected to be completed in 2005. Beijing, besides, plans to build an 82.25-kilometer-long subway to add to the existing 53 kilometers. Nine major roads will be rebuilt or widened. Beijing also plans to build a 70-meter-wide green belt among the waterways to protect the water quality as well as to increase the green areas. From the last three paragraphs we know the fact that ______.
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。 As she walked round the large shop, Edith realized how difficult it was to choose a suitable Christmas (36) for her father. She (37) that he were as easy to please as her mother, who was (38) satisfied with perfume. (39) , shopping at this time of the year was a most (40) job. People (41) on your feet, pushed you with their shoulders and almost (42) you over in their hurry in order to (43) something cheap ahead of you. Partly to have a rest, Edith paused in front of a counter, where some beautiful ties were on (44) . "They are (45) silk," the shop assistant told her with a smile trying to (46) her to buy one. But Edith knew from past (47) that her choice of ties hardly ever pleased her father. She moved on slowly and then, quite by chance, (48) where a small crowd of men had gathered round a counter. She found some fine pipes on sale and the (49) were very beautiful. Edith did not hesitate for long. Although her father (50) smoked a pipe once in a while, she believed this was (51) to please him. When she got home, with her small but (52) present hidden in her handbag, it was time for supper and her parents were already (53) table. Her mother was in great (54) . "Your father has at last decided to stop smoking," she told her daughter happily. Edith was so (55) that she could not say a single word.
患儿，7岁。 自幼体健。1个月前曾患化脓性扁桃体炎。近2周来发热，最近1周游走性关节疼痛，心前区不适来院就诊。查体：急性病容，面色苍白，腕、肘关节肿、痛，周围皮肤红、热，听诊心尖部有Ⅲ级收缩期杂音，胸片示心脏轻度扩大，血化验结果白细胞总数增多，中性粒细胞比例增高。 最有可能的诊断为( )。
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