女性，29岁，左肩背部肿物20余年，随年龄增长缓慢增大，无疼痛等特殊不适感觉。查体：左肩背皮下肿物约10cm×8cm，明显高出皮肤，边界较清楚，表面温度增高，有搏动感，质地有一定张力和弹性。
最可能的正确诊断是（）
A.血管瘤，增生期
B.血管瘤，退化期
C.血管畸形，动脉静脉型
D.血管畸形，静脉型
E.血管畸形，淋巴静脉型
参考答案：C
Gasoline (汽油) prices are getting higher and higher. The prices make it hard for drivers to afford the fuel. One group held a special event to display（展示）new kinds of cars . The new cars are different and they can run on many different kinds of fuels .  Some of these cars are called hybrids(混合动力). They can run on different kinds of fuels . One kind of them runs on a special fuel cell which is filled with a gas called hydrogen(氢气). ___小题1:___ They are very clean , and don’t give off bad fumes(烟雾) when they run . The man who makes fuel cell cars is excited about the technology .__ 小题2:___ Once we use oil up , it will take millions of years for more oil to form. Since gasoline is made from oil , that could be a problem for companies that make traditional cars , and for drives . __小题3:__ Buses that run on hydrogen fuel cell power are being tested on the road . They could become a common form of transportation in the near future
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