After a long walk in the sun, they wanted to drink .
A:cold something
B:something cold
C:nothing cold
D:cold anything
陶行知的“千教万教教人求真,千学万学学做真人。”这里的真人指的是( )
设0<a<1,定义a1=1+a,an+1=1an+a , 求证:对任意n∈N+,有1<an<11-a
What ____ you do for the party?