【单选题】The Effects of Global Warming on Weather There are hidden factors which scientists call “feedback mechanisms”. No one knows quite how they will interact with the changing climate. Here’s one example: ...
A.
how plants and animals adapt to hidden factors
B.
how plants and animals interact with the changing climate
【简答题】阅读理解。 Most people feel lonely sometimes,but it usually only lasts between a few minutes and a few hours. This kind of loneliness is not serious. In fact,it is quite normal. For some people,though, lon...
【单选题】Most people feel lonely sometimes but it usually only lasts between a few minutes and a few hours. This kind of loneliness is not serious. In fact, it is quite normal. For some people, though, lonelin...