自然土壤成土五因素是指() ["母质","地形","气候","生物","时间","纬度"]
下列哪个器具不属于泡茶器?() ["紫砂壶","飘逸杯","随手泡","同心杯"]
各类会计业务印章的掌管人,应由会计负责人或()指定。 ["会计负责人","内勤主任(会计主管)","柜员","现金会计"]
某RNA含鸟嘌呤15%,胞嘧啶25%,则它的模板DNA分子中碱基A为() ["25%","30%","75%","60%"]
乌龙茶是中国的特有茶类,以下哪些是乌龙茶的主产区?() ["闽北","广东","台湾","广西"]
塑料制件生产的完整工序顺序为()、()、()、()、()等,这一顺序不容颠倒。