游乐设施采用卷筒传动的结构,必须设有防止钢丝绳过卷和松弛的装置,钢丝绳的终端在卷筒上应有不少于()圈的余量。 ["1;","2;","3;","5。"]
我国幼儿园课程的几种典型定义是什么?
跟中国散文最接近的国家是:() ["日本","朝鲜","越南","泰国"]
以保险人的承保方式为标准划分,保险可分为() ["原保险","不定额保险","定额保险","再保险","超额保险"]
作为文体词“物语”的词性是:() ["动词","形容词","名词","副词"]
燃烧计算中需主要确定那几个参数?