【单选题】It’s reported that the police will soon ____ the case of two missing children.
【判断题】闪点是评定液体火灾危险性大小的重要参数。闪点越高,火灾危险性就越大;反之,则越小。
【多选题】下列哪几项措施对混凝土养护工作有利( )。
【单选题】Don't worry , the children are now old enough to ______ themselves.
【单选题】Our teacher told us to the new words in the dictionary if we didn’t know them.