请认真阅读下列短文，并根据所读内容在文章后句子中的空格里填入一个最恰当的英文单词。注意:每个空格只填1个单词。
It was night by the time she came to a town. Just outside the town, there was a large temple(寺庙). It was very quiet. There was only one light in one of the rooms.
"I will stay here tonight," she thought.
The temple was quiet because only a goblin(小妖精)lived in it. But the girl did not know this.
Once inside the temple, she came near to the only room. She knocked on the door, but no one came.
"Is anyone here?" she called quietly.
There was no answer, so she went into the room. Inside the room, there was only a mat(垫子)on the floor, a light near the window, and a large paper screen.
The girl wanted to sleep, but she also wanted to draw some cats. She drew them on the paper screen. She drew cats of every kind.
After that, she lay down and went to sleep. Then she remembered the nun's words: Don't go into large places at night. Go only into small ones.
"This room is very large. And I am alone. I'll hide myself."
She looked around the room and saw a large box. She opened the box and looked inside. It was empty.
"Good," she thought. "I can hide in this box."
的最小值为n，则二项式
的展开式中的常数项是 ( ）