患者女性，57岁，右上腹痛和压痛，体温39.1℃，申请腹部超声检查。
超声检查可见右肝斜径143mm，右前叶上段近膈肌可见43mm×47mm的低回声占位，边界模糊，内部回声欠均匀，局部膈肌显示不清，其余肝实质回声稍增强；胆囊前后径26mm，长径56mm，胆囊壁厚4mm，囊壁模糊，腔内可见4mm强光团。作为超声医生，可能的疾病是（）。
A.胆囊炎
B.肝脓肿
C.肝囊肿
D.肝癌
E.胆囊结石
F.肝包虫实变
参考答案：A, B, D, E
Texting in the street—your funeral
Millions of people are putting their lives at risk by texting their friends as they walk along busy streets, reported the Daily Mail. One in ten 41 users has already been 42 because they are so lost in their phones that they fail to 43 lamp-posts or cars, according to Joanna Lumdsen of Aston University. To test the danger of texting while 44 , Lumdsen did an experiment in which volunteers followed a 45 path while trying to 46 in a message on the phone. Around them, screens 47 up instructions to avoid stepping on 48 colors on the floor. She found that people missed one in five 49 because they were so busy with their phones. “In 50 life this means that one in five lamp-posts or moving cars is 51 to go unnoticed by people 52 and walking,” she said. Her research is looking for ways cell phone makers could improve the 53 of phones to make texting on the move 54 . That could 55 easier-to-use voice operated phones, or phones that respond to gestures. “The safest thing is 56 people not to text while they walk along,” she said. “ 57 a lot of people in business are 58 to carry a mobile phone and be in 59 24 hours a day, seven days a week. They are under pressure to reply to calls 60 , and to respond to text messages and emails straight away.
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