A:3
B:2
C:1
D:-1
40°N的某地属于 ( )
“a>b>0”是“ab<a2+b22”的 ( )
将家庭中常用的四种调味品分别放入水中,不能形成溶液的是( )
— Only________ people can afford to travel around the world.
—Not exactly. I heard that a poor student travelled around the world with little money.