问题
判断题
直向容许通过速度大于等于200Km/h的道岔称为高速道岔。
答案
参考答案：对
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直向容许通过速度大于等于200Km/h的道岔称为高速道岔。
参考答案：对
| 选词填空，完成短文。（只填序号） | |
3__________ comes out. I am very hot. I am now 4__________. I see many friends. I am now in a 5__________. It's cloudy now. I am heavy. I fall. I am now 6__________. |