题目

You look so tired. Why not ______ at home and ______ a rest (休息)?A. to stay, to have B. staying, having C. stays, has D. stay, have 答案：【答案】D【解析】句意：你看起来很累。为什么不呆在家里休息一下呢？句型why not do sth.?：为什么做某事呢？提出建议的句型。and是并列连词，它连接的两个动词短语动词形式应一致，故用stay和have，选D。与有丝分裂相比较，减数分裂所特有的是（    ）     A．DNA分子的复制            B．着丝点的分裂     C．染色质形成染色体         D．出现四分体