数目较少,位于丝状乳头之间,呈圆形头大颈细的突起是
参考答案
参考解析
【单选题】
It is good for local people to be well aware that tourism will _____.
use up a large amount of water
weaken their economy
help establish their traditions
help improve their life
【单选题】
女性,54岁,左侧腹胀、腹痛,大便不成形,每日3~4次,有脓血。查体:左下腹似可扪及包块,边界不清,明确诊断首选的检查是
B超
CT
CEA
直肠指诊、结肠镜
大便潜血试验