女，41岁，上腹部不适、胀痛月余，经超声检查诊断为肝血管瘤，血_爱下问搜题

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问题单项选择题

女，41岁，上腹部不适、胀痛月余，经超声检查诊断为肝血管瘤，血管瘤瘤体较小，应选择哪种治疗（）

A.手术治疗

B.介入栓塞治疗

C.穿刺注硬化剂

D.放疗

E.定期复查

答案

参考答案：E

填空题

正四棱锥S－ABCD的底面边长为2，高为2，E是边BC的中点，动点P在棱锥表面上运动，并且总保持PE⊥AC，则动点P的轨迹的周长为________．

改错题

The village was always very quietly. The people living
there were busy about working in their fields during the
day and went to bed early at night, tiring after a
long day 's hard work. All of them had lived in a
village for all their life and had never left for less than
one day at a time. On these days how they left, they got
up early in the morning. They filled with their cart of
fruit, vegetables and sheeps, and went to the
market in the town beyond their valley. They come
back on the evening with some money and perhaps a

1. _______
2. _______
3. _______
4. ____ __
5. _______
6. _______
7. _______
8. _______
9. _______
10. _______

present for their children. That was their life－hard and
simple, but not unhappy.