[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fciZpZ1-fX-R97sNu2y3FPEkV6atQ3Ddj7dqj89m2sBw":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":18,"related":19,"source":29,"type":43},[],"2025-10-30 10:46:31",1074628347,[8,9,10,11],"对遮罩边缘进行羽化","设置遮罩的不透明度","扩展和收缩遮罩","对遮罩进行反转",{"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},"1000078043","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F48e7e0331c204127d6e86346580535f9.jpg","带你解密影视后期制作——影视后期技术","62354949","第三章单元测试","在 After Effects 中,对于已生成的遮罩,可以进行( )调节",[20,31,40,44,53],{"answer":21,"createTime":5,"id":22,"options":23,"question":28,"source":29,"type":30},[],1074628329,[24,25,26,27],"按住Shift键拖动句柄,可以从遮罩中心开始建立遮罩","按住Ctrl键拖动句柄,可以从遮罩中心开始建立遮罩","按住Alt键拖动句柄,可以从遮罩中心开始建立遮罩","按住Shift+Alt键拖动句柄,可以从遮罩中心开始建立遮罩","椭圆遮罩工具绘制mask时( )","v2",0,{"answer":32,"createTime":5,"id":33,"options":34,"question":39,"source":29,"type":30},[],1074628337,[35,36,37,38],"Add","Subtract","Darken","Difference","以下( )遮罩的混合模式可以显示遮罩相交部分以外的所有遮罩区域",{"answer":41,"createTime":5,"id":6,"options":42,"question":18,"source":29,"type":43},[],[8,9,10,11],1,{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":29,"type":30},[],1074628355,[48,49,50,51],"可以用钢笔工具(Pen Tool)绘制自由遮罩","可以用矩形和椭圆遮罩工具绘制规则遮罩","可以在准备建立遮罩的目标层上单击鼠标右键,选择 Mask>New Mask命令,绘制各种遮罩","可以利用在 Adobe Photoshop CS或 Adobe Illustrator CS中绘制的路径作为遮罩","在 After Effects中,对于生成遮罩(Mask)的描述不正确的是( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":29,"type":30},[],1074628467,[57,58,59,60],"Color key","Color Range","Inner Outer Key","Linear Color Key","以下( )键控类型需要建立内外两个遮罩"]