【简答题】One of the characteristics of speech in everyday life is that speech is ( ). That is, in most situations, people do not plan ahead of time what they are going to say.
【简答题】阅读理解。 In most situations, light helps us see. But nowadays humans are using too much of it so that it is in fact a kind of pollution. When it comes to looking at the night sky, too much light makes it...