注意:此页面搜索的是所有试题
In sentence non-final position the difference in tone meaning between low rise, high rise100.fall-rise or mid level tone varieties is not great Sometimes speakers just seem to ring thechanges between them to avoid repetition () .

参考答案


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