This big coat is . That is yours.
A:my
B:mine
C:yours
—No, it isn't. _______ is over there under the tree.
某几何体的三视图如图(其中侧视图中的圆弧是半圆),则该几何体的表面积为( )
澳大利亚矿产资源丰富,( )储量居世界首位.