With user-______ computer, people with little educatiocaalso learhow to use it.
·friend
·friendly
·friendliness
·friendship
出自:运营管理

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