WindowsFlip3D功能可以由()启动。
A、按+组合键
B、按++组合键
C、点击“显示桌面”按钮
D、点击“行动作业中心”按钮
参考答案:A
---I’m sorry, but there is no smoking on this flight.
---Oh, I _____that. Sorry, I won’t again.
A. don’t know B didn’t know C. won’t know D. haven’t known
尸体检验应在法医的主持下进行。( )