在FLASH MX中,()主要用于创建动画中的静态图像和动画片段,是构成动画的最小单位。
A.按钮元件
B.电影剪辑
C.矢量图形
D.图像元件
参考答案:D
促进钙质沉着与镇痛()
A.局部紫外线照射
B.按摩
C.蜡疗
D.碘离子导入
E.冷疗
He didn't realize he had forgot his bag _____ the plane had taken off.
A.unless
B.until
C.if
D.or