采用架空隔热层的屋面，架空层不得堵塞；当其屋面宽度大于（）时，应设通风屋脊。 ["7m","8m","9m","10m"]
Which two statements about the IS -IS routing protocol are true?（） [" IS - IS is capable of supporting IPv4 and IPv6."," IS - IS is only capable of supporting IPv4 and CLNS."," IS - IS routers use ES - IS hellos (ESH) to establish and to maintain neighbor relationships."," IS - IS routers run the Bellman - Ford algorithm against their LSDBs to pick the best paths."," Level 1 routers learn about paths within the area of which they are a part."," Level 2 routers learn about paths both within areas and between areas."]
英格兰的技术发明在17-18世纪之交已经蓬勃发展，先后出现了铁匠兼锁匠纽卡门的蒸汽机，制铁人达比解决高炉冶铁燃料问题的炼焦炉等。1733年技工凯伊发明了飞梭，同年木工怀亚特发明了第一台纺纱机。1765年，钟表匠哈格里夫斯发明了珍妮纺纱机。这一现象说明（）。 ["工业革命促进社会生产","科学理论带来技术发明","教育发展推动文化普及","技术发明源于生产实践"]
村干部职数一般核定为3至7名，其中，人口1000人以下的村为（）名，人口1000至3000人的村为（）至（）名，人口3000人以上的村为（）至（）名。
（）是人的心理活动的源泉。 ["感知觉","内心世界","认识过程","客观现实"]
机械性窒息的一般尸体征象并不是（）死者所特有，_也可见于其他类型的窒息。
