【判断题】心理健康水平是一个量变与质变相互依存和相互转化的连续谱。
【单选题】It's difficult _____ a little girl to answer these questions. It's really nice ____ you to help her answer them. [ ]
【多选题】下列各项中,属于加速折旧的方法有( )。
【单选题】Peter ______ be really difficult to deal with at times even though he’s a nice person in general.