给画线的字选择合适的解释,将序号填在括号里。
司空见惯 [ ]
A.习以为常的。
B.纵容,放任。
答案:A
根据汉语意思,写出单词的正确形式。
1. How many (孩子) are there in your family?
2. The men and women walk____ (快).
3. How did you go to school? I____ (去) to school on foot.
4. On the ____ (第三) day, we'll go to the museum.
5. How much are these____ (邮票)? Ten yuan.
当舱内危险物质发生溢漏时,应采取()应急措施。
A.适当地通风,排除有毒或易燃气体,含氧量不低于18%
B.进舱人员必须配带自供式呼吸器、穿防护服
C.应有负责的驾驶员现场监督
D.ABC都是