在会声会影的导览面板中,()。
A.单击按钮前进一帧
B.单击按钮到第一帧
C.单击按钮后退一帧
D.以上不全对
参考答案:B, C, D
根据句意和首字母完成句子。
1. Let's go up the m______, I want to get the top first.
2. They can run very f______.
3. These animals are our f______.
4. We shouldn't w______ too much water.
5. Please turn off the light w______ leave the room.
TPS系统中每个操作区最多可包含()个程序组。
A.8
B.1
C.50
D.6