Learning to speak at least a few polite words of another language is usually taken as a sign of respect by others who speak that language.
A.正确
B.错误
出自:国家开放大学婚姻家庭法学

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