A:leaves for;leaves for
B:will leave for;will leave for
C:will leave for;leaves for
D:leaves for;will leave for
若你发现有个下水道井盖丢了,你会怎么做?
①善于学习新知识 ②掌握新技术
③创新能力强 ④敢于质疑,大胆实践
下列句子标点符号使用都正确的一项是( )