单项选择题 关于会员活动不正确的是（）

未知题型 Read the letter extract below. Choose a word from “advise, apologize, persuade” to describe the purpose of the writer. Dear Frank, No-one knows as much as I do how hard you’ve worked to get that restaurant up and running, so the thought that I might have put it in jeopardy fills me with horror. It was a moment of stupidity, that I don’t intend to repeat, though if you choose not to trust me again, I would entirely understand. Best, Mark The purpose of this letter is to ____.

单项选择题 关于“耶克斯一多德森定律”，下列说法正确的有（ ）（常考）