- Are they sheep?
- _________. They're goats.( )
A：Yes, they are
B：No, they aren't
一个同学站在平面镜前1.5m处，则镜中的像与他相距（ ）
“通过封建契约和分封仪式，如臣服礼、授职礼，领主和附庸形成依附关系。”材料体现的制度是（ ）
—Yes, she was well-known _____ a nurse in England _____her kindness to the sick and wounded soldiers.
用不等号“＞、＜、≥、≤”填空：a2+1 ____0．
