By the year of 2053 there will be 487 million aged people in China，      means that one third of the population will be over 60.

A．that

B．which

C．what

D．where

“人民币上学地理”，依据人民币的景观判断两地区主要分布的少数民族分别是（　　）

A．壮族藏族

B．高山族满族

C．苗族回族

D．傣族维吾尔族