问题
单项选择题
直肠指诊可触及质地坚硬、表面不平包块的病症为（）。
A.肛裂
B.血栓痔
C.直肠癌
D.直肠息肉
E.直肠肛管周围脓肿
答案
参考答案：C
解析：直肠周围脓肿初起无明显体征，以后出现红肿、压痛，直肠指检可扪及柔软有波动、有压痛的肿块，穿刺可抽出脓液。约80%的直肠癌直肠指检均可触及质地坚硬、凹凸不平的包块。
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直肠指诊可触及质地坚硬、表面不平包块的病症为（）。
A.肛裂
B.血栓痔
C.直肠癌
D.直肠息肉
E.直肠肛管周围脓肿
参考答案：C
解析：直肠周围脓肿初起无明显体征，以后出现红肿、压痛，直肠指检可扪及柔软有波动、有压痛的肿块，穿刺可抽出脓液。约80%的直肠癌直肠指检均可触及质地坚硬、凹凸不平的包块。
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| Jimmy 1 in the village (村庄), and he loves 2 in the river near his house, but his father gets a job in a big city (城市), and he moves there 3 his family. Their new house has a garden, but the garden is very small. Jimmy 4 very happy. "Is there a river 5 ?" he 6 his mother on the first morning. His mother answers, "No, there isn't, but there is a beautiful park near here. And there's a pool in it. We are going there this afternoon." Jimmy is happy now. 7 lunch, Jimmy and his mother go to the park. Jimmy wants 8 near the pool, but there is a sign in front of it. His mother reads it to him, "Warning: This pool is very dangerous (危险的). 400 people have fallen into (掉进) it." Jimmy 9 the pool carefully (仔细地), and says, " 10 I can't see them". | ||||
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