法西斯的新闻事业属于什么阶段()。
A
暂无解析
两列机械波I、II在传播过程中遇到一障碍物,I的波长与障碍物尺寸相当,II的波长远小于障碍物尺寸,则机械波()
thebossescannotdowithoutprofit,workershaveanedge.
Goodparentshavetheabilitytocommunicatemessagesoflove,trust,andself-worth______theirchildren
Itisessentialthateverythinginadvance.()
We______togotothesupermarketbecausewehadplentyoffood.