【单选题】In traffic lights, red can only mean stop. But in human languages, limited phonemes can form. numerous words which can form. unlimited sentences. This is a good illustration of the______feature of lan...
【简答题】Without facts ,we can’t form. a correct opinion ,for we need to have actual knowledge our thinking. A . which to be based on B . which to base on C . on which to base ...
【简答题】__ unemployment and crime are high, it can be assumed that the latter is due to the former. A. Before B. Where C. Unless D. Until A. Before B. Where C. Unless D. Until