— I mean the best way is using your own mobile phone or computer to operate it.

选择一项:
A. What do you mean?
B. What do you think?
C. How do you think?
出自:理工英语1

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块