3311E差速器中,轴承盖和壳体必须作为一个总成更换。
参考答案:对
请根据汉语意思写出正确的单词。
1. Where is the ____ (计算机) room?
2. It's on the first ____ (层).
3. We have two new ____s (灯). They're in our____ (老师的) office.
4. Do you have ____ (午饭) at school?
已知点A(k+1,2)在双曲线y= 上,试判断双曲线y= 与直线y=x+1有无交点.(6分)