When a line is laid down in loose,looping figure-eights,it is said to be(). ["Faked","Flemished","Coiled","Chined"]
下列植物属于直根系植物是() ["牵牛","水腊","马尾松","棕榈"]
我国最基层的教育行政机关是() ["县教育局","乡镇教育委员会或教育组","村民委员会","中心校校务办公室"]
职业健康检查结束后,需要复查的,可以根据复查要求增加复查项目。
王朝政治的新格局?
核糖体的两种存在形式为()、()。