如图,△ABC与△DEF是位似图形,位似比为2:3,若AB=6,那么DE=____
根据图片提示补全单词: sw____ ____ ter
下列关于变异的叙述,正确的是( )
- Look at the light. – It's ____(green/red). Let's ____(go/stop).
8+4=____