【简答题】Keep your emails succinct. If you can’t relay your message in five ___________ or fewer, it should be communicated in person or over the phone.
【简答题】( )提出的反向学习机制,认为梦可以消除大脑中无用的多余信息,使脑力恢复。
【单选题】They keep __________ me emails.
【简答题】They keep ____________ (send) me emails.