【简答题】用并列连词将两个句子合成一个并列句 1. He was tired. He went to bed. 2. He made a promise. He didn’t keep it. 3. Mary is opening the door. Tom is greeting her guests. 选择适当的词填空。 1. I _______ (saw have seen) her yester...
【单选题】按蚊吸人疟原虫的什么阶段,才能继续在蚊体内发育?( )
【判断题】累计换模时间等于内置换模时间加上外置换模时间。
【简答题】Is he married? ( ). (Yes or No)