阅读短文，掌握其大意，然后根据短文内容从方框中的七个选项中选择五个适当的句子还原到短文，使短文意思通顺，结构完整。
Once upon a time, there was a wolf(狼). He lived in the forest. One day, he was very hungry ____. He came to a farm and saw some sheep (绵羊)on the farm. The wolf looked around. He did not see the shepherd(牧羊人) ____ Suddenly he had an idea. He put on a sheepskin（羊皮）and dressed up as a sheep. Then he came up to the sheep. He pretended(假装)to eat grass. ____ In fact, he just wanted to eat the sheep.
When night came, the shepherd gathered （聚积）sheep into a pen(围栏). He did not know that the wolf was among the sheep. The wolf walked around the pen. ____. But the shepherd come back again. He went to the pen to look for a sheep to cook for his family. The shepherd picked a large one. To his surprise, that was the wolf wearing the sheepskin! The shepherd shouted. “Wolf! There is a wolf! ____.They ran to the sheep pen and killed the wolf.”
A. The wolf hated the sheep. B. He wanted to look for a large sheep to eat. C. His family heard the shout. D. He wanted to dink water. E. He wanted to find something to eat. F. He even pretended to play with the sheep. G. Because he was afraid of the shepherd. |
2AlN+3CO．若有14kg的氮气参加反应，可生成氮化铝的质量为多少？