安全教育和技术考核不合格者,严禁()操作。
参考答案:独立顶岗
Read and write. 你知道下面节日的日期吗?把句子补充完整。
1. New Year's Day is .
2. Women's Day is .
3. Children's Day is .
4. Teachers' Day is .
5. National Day is .
6. Your birthday is .
直角三角形的两条直角边就是它的两条高.______.(判断对错)