女性，59岁。因右上腹疼痛伴发热2天入院，既往有类似病史，病人有高血压痛、冠心病及心衰病史，3个月前曾因心衰住院，现已好转。查体：T38.5C，P112次/分.R22次/分，BP21.3/12kPa（160/90mmHg），巩膜无黄染，右上腹压痛、腹肌紧张，反跳痛（+），可扪及肿大之胆囊，Murphy征（+），胆囊区叩击痛，血WBC15×109/L，N80%。
为了进一步明确诊断应首选（）
A.PTC
B.CT
C.ERCP
D.B超
E.MRI
参考答案：D
完形填空 Once, a king showed two men a large basket(篮子) in the garden. He told them to fill it with water from a well(井). After they 1 their work, he left them, saying, “When the sun is down, I will come and see your work.” At last, one of them said, “What’s the use of doing this foolish(愚蠢的) work? We can 2 fill the basket.” The other man answered, “That is 3 of your business.” The first man said. “You may do as you like, but I’m not going to work at something so 4 .” He 5 his bucket and went away. The other man said no word, and kept on carrying 6 . Finally, the well was almost 7 . As he poured(倒) the last bucket(桶) of water into the basket, he saw a bright thing in it. He picked it 8 . It was a beautiful gold ring. Just then the king came. 9 _ he saw the ring, he knew that he had found the kind of man he wanted. He told him to keep the ring for himself. “You 10 so well in this little thing,” he said, “that now I know I can believe you with many things.”
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