持证人员的岗位或部门和持证车辆的单位发生变动时，申办单位应在（）将原证交分局空防处并办理相应的变更手续。
A、七日C
暂无解析
_____he speaks softly is no proof that he is kind.
句子写作：Such an attitude would emphasize the value of life.
During the past two decades, research has ________ our knowledge of daydreaming.
He complained to the bookseller that there were several pages ______ in the book.
句子写作：My presentation seemed to go well.
