在图上适当位置印出图内所使用的图式符号及说明通常叫做( )。

A．图样

B．图注

C．图例

D．图标

Which of the following is true about China

A．The oil demand growth in the second quarter is 12.3%.

B．Restrictions on trucking and economic growth will help reduce the oil demand.

C．Extra refining capacity is also under tight control.

D．The oil demand in the third quarter will fall by 9%.