题目内容：

please answer my question __A.instantly B.at once C.immediately
答案是C/.为什么

优质解答

就是选 Cmmediately,instantly和at once这三个词都可表示"立即,立刻".其中immediately指两个动作相继发生,暗示没有耽搁; instantly所表示的时间更短暂,后一动作在前一动作后瞬间发生; at once基本与instantly相同,但...