A:④③①②⑤
B:④⑤③②①
C:④③②①⑤
D:④②③①⑤
“它成立之初,就拥有3.6亿消费者,国民生产总值总计超过6万亿美元。……它是典型的南北双方为共同发展与繁荣而组建的区域经济一体化组织,南北合作和大国主导是它最显著的特征。”材料中的“它”是指( )
—Did you do well in the math examination yesterday?
—I'm afraid not. Some problems were not as easy as they________.
下列关于物质的性质和用途说法不正确的是( )