Some modern art is so abstract that the painter only concentrates on certain qualities of the object, using colour, line and shape to _______ them.

A．make

B．admit

C．settle

D．represent

步态定性分析观察法不正确的是（）

A.观察由远端到近端

B.观察由近端到远端

C.按步行周期中每一环节发生顺序进行观察

D.首次着地作为评定的走点

E.先观察矢状面，再观察冠状面