A:同压强、同体积的N2和CO2
B:同温度、同体积的H2和N2
C:同压强、同密度的C2H4和C3H6
D:同质量、不同密度的N2和CO
The little boy is ________ to know how the people in the South Pacific Ocean are living. ( )
读世界不同尺度的区域轮廓图,完成下列各题。