变体设计的变化要素：外形变化、笔画变化、结构变化、（）。
A.特殊技法
B.材料技法
C.夸张技法
D.寓意技法
参考答案：B
论述生物氧化的特点。
My father ____ my brother for driving but he wanted to pick ____ the knowledge of the computer during his spare time.
A．advised; up
B．persuaded; out
C．intended; up
D．managed; out
