型钢轧机是以（）命名。
A．轧辊工作辊径
B．成品轧机轧辊公称直径
C．第一架轧辊公称直径
参考答案：B
小明提出六个问题，请你根据实际情况用“Yes”或“No”回答。
1. Does a tiger have a trunk?
2. Does a zebra have fur?
3. Does an elephant have fur?
4. Does a snake live in a hole?
5. Does a panda live in a forest?
6. Does a giraffe eat leaves?
平网是指安装后与作业面呈垂直的网，主要用来阻挡人和物的坠落。（）
