A-A+
As is well-known the higher we go above the e
问题详情
As is well-known, the higher we go above the earth, the ______ air we have.
A．rarer
B．rare
C．rarest
D．more rare请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：A
解析：“the+形容词比较级…，the+形容词比较级…”表示“越…，越…”。句意：众所周知，离地越高，空气越稀薄。
