15.Air behaves like a simple material ___ a mixture of gases.
问题描述:
15.Air behaves like a simple material ___ a mixture of gases.
a.better than
b.more than
c.other than
d.rather than
选什么,怎么分析的?
中文怎么翻译好
答
选 D
空气表现象一种单一的物质,而不象气体的混合物.