阅读下面的材料，回答有关问题．

材料一：科学工作者将一种高产不抗倒伏的小麦与另一种低产抗倒伏的小麦进行杂交，后代中出现了图中四种类型，选择高产抗倒伏类型进行繁殖培育，多代后就获得了稳定遗传的高产抗倒伏类型的新品种．如图所示．

材料二：科学家利用航天技术，通过返回式卫星、宇宙飞船、航天飞机等手段搭载普通的甜椒种子，返回地面后再进行选育，培育成果实个大、肉质厚、口感好、产量高的太空椒．

材料三：新疆棉以绒长、品质好、产量高著称于世，内地某纱厂厂长曾试图引种新疆棉在本地栽培，结果种植后性状表现与本地棉相差无几．

完形填空。通读下面的短文，根据短文内容，从 A、B、C 三个选 项中选出可以填入空白处的正确答案。

Long long ago, there was a beautiful little girl. She was 1because she had no family and no home. She only had her clothes and some bread. But she was very kind.

 A man asked her2she had something to eat. She gave him her3.

A child cried and told her that his 4was very cold. So she gave him her hat.

Then, she met a child with no coat. She gave him her coat.

One day, in the cold5forest, she met another child who

 6her dress. The little girl thought that it was dark and

7could see her, so she gave her dress away. At last, she had almost nothing: no family, nowhere to live, nothing to eat and little to wear.

8, stars fell from the sky. These stars became beautiful pieces of money. With the money, she9a new dress and a coat.

The little girl was rich for the10of her life and she still helped the people in need with her money.