安全警示标志中的安全色是表示安全信息含义的颜色，安全色分红、黄、绿、蓝四种，分别表示止、警告、指令和提示。
1、正确错误
暂无解析
RobertFrostisgenerallyconsideredaregionalpoetwhosesubjectmattersmainlyfocusonthelandscapeandpeoplein().
We________goouttorestaurants,butmostlyweeatathome.
EmpiricalstudiesshowthattheprocessofSLAisaprocessofconstructingandmodifyingrulesofcommunication.
Theteachertoldusthefact_______.
Fromthesociolinguisticperspective,aspeechvarietyisnomorethanadialectalvarietyofalanguage.
