题干
— ________ is it from here to your school?
— Ten minutes' walk.
A：How long
B：How about
C：How far
D：How
答案(点此获取答案解析）
C
— ________ is it from here to your school?
— Ten minutes' walk.
A：How long
B：How about
C：How far
D：How
；②沼气和天然气
都是可再生能源；③冰和干冰既是纯净物又是化合物；④不锈钢和目前流通的硬币都是合金；
