时间线上绿色的帧表示()。
A、形状渐变
B、静止
C、帧数
D、动画速率
参考答案:A
We' ve published large quantities of books. This year___ we've published three million.
A.only
B.just
C.alone
D.merely
正常时,眼底动脉与静脉管径之比约为:
A.2:3B.1:3C.2:4D.1:2.5E.2:2.5