【单选题】, the compass was first made in China.
【单选题】What was the purpose when the magnetic compass was first invented?
【单选题】患者,女性,34岁。以身体无力入院。检查发现其细胞线粒体结构异常。线粒体的寿命约为1周,它通过下列哪种方式增殖
【单选题】Nearly two thousand years have passed______ the Chinese first invented the compass.
【单选题】下面不属于教育研究成果的主要表现形式的是( )。
【单选题】下列哪种细胞的分裂方式为减数分裂。( )
【单选题】创建网页中的拖动层行为效果,要选择事件为鼠标移动到对象上面是( )。