蒙古族主人敬酒时,如客人(),主人会认为是对自己的尊敬和忠诚。
参考答案:一饮而尽
选择正确单词填空。
1. He is a merry man _________ (in / on) red clothes.
2. Children say he _________ (bring / brings) toys on Christmas.
3. We invite our family _________ (in / to) our house.
4. They bring gifts _________ (to / for) us.
5. December _________ (twenty-five / twenty-fifth) is Christmas.
发明专利申请说明书文字部分中可以有()。
A.化学式、数学式
B.表格
C.装配图
D.权利要求