在Flash MX中图层可分为3大类()。
A.普通图层
B.遮蔽图层
C.效果图层
D.引导图层
参考答案:A, B, D
鞘膜积液分四种,如图所示为哪种()。
A.睾丸鞘膜积液
B.精索鞘膜积液
C.睾丸精索鞘膜积液
D.交通性鞘膜积液
E.以上都不是
It's important to write these goals down______ merely think about them. [ ]
A. more than
B. rather than
C. other than
D. less than