若神六升空时出现故障，航天员能否逃生，如何逃生？

阅读下面的短文，然后以约30个词概括短文的内容。

     Mother’s Day was coming, a man stopped at a flower shop to order some flowers to be wired to his mother who lived two hundred miles away.

     As he got out of his car, he noticed that a young girl was sitting on the curb sobbing (啜泣). He asked her what was wrong with her and she replied, “I wanted to buy a red rose for my mother. But I only have seventy-five cents, and a rose costs two dollars.”

     The man smiled and said, “Come on in with me. I’ll buy you a rose.”

     After they went in, he bought a rose for the little girl and ordered flowers for his own mother.

As they were leaving, he offered to ride the girl home. She said, “Yes, please! But can you take me to my mother?” “To your mother?” the man was a little puzzled but didn’t say anything. She directed him to a cemetery, where she placed the rose on a freshly dug grave (坟墓).

     The man was shocked and returned to the flower shop, canceled the wire order, picked up a bunch of flowers and drove the two hundred miles to his mother’s house.

在等高线地形图上，从山顶到山脚的凸出部分叫做______；两个山顶之间的凹下部分，叫做______．

关于刃厚皮片，叙述正确的有（）

A.刃厚皮片平均厚0.3mm，组织学上包含皮肤的表皮以及少许真皮 * * 层

B.刃厚皮片极薄，很容易成活生长

C.刃厚皮片可用来修复感染的肉芽创面和烧伤后的肉芽创面

D.手掌、面部和关节部位的皮肤缺损用刃厚皮片进行移植修复效果较好

E.口腔、鼻腔或眼窝黏膜缺损时，可用刃厚皮片进行修补

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电机制造用绝缘薄膜有何意义？