[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3XLGiJLk_AWAF1K0C0BwhLE7xVcVkIKvff6mfXVKb7A":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":18,"related":19,"source":27,"type":53},[],"2025-11-25 19:04:03",1071783382,[8,9,10,11],"斜切面","径切面","弦切面","横切面",{"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},"1000093476","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F439f51cba98968fbf066cd7ba7d0e248.jpg","[共享课]红木鉴赏与收藏","62061331","第二章单元测试","为了解木材的构造特征,须从三个切面进行观察,三个切面为( )",[20,29,34,39,44,54,63,68,71,81],{"answer":21,"createTime":5,"id":22,"options":23,"question":26,"source":27,"type":28},[],1071783283,[24,25],"对","错","晚材是生长季节晚期形成的木材.特点是细胞分裂速度慢,分裂能力减弱,胞壁厚,材质致密、坚硬,材色深.( )","v2",3,{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":27,"type":28},[],1071783286,[24,25],"木射线是木材中唯一成辐射状、横向排列的组织.宽木射线的木材是制作家具的好材料.( )",{"answer":35,"createTime":5,"id":36,"options":37,"question":38,"source":27,"type":28},[],1071783298,[24,25],"在木材的横切面上,可见有一部分材色较周围的材色略浅、用水湿润更为明显的组织,这部分组织称为轴向薄壁组织.( )",{"answer":40,"createTime":5,"id":41,"options":42,"question":43,"source":27,"type":28},[],1071783302,[24,25],"气干密度是气干材重量与气干材体积之比,通常以含水率在8%-20%时的密度为气干密度.木材气干密度为进行木材性质比较和生产使用的基本依据.( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":27,"type":53},[],1071783363,[48,49,50,51],"梢材","中材","根材","枝材","根据取材部位不同,木材可分为( )",1,{"answer":55,"createTime":5,"id":56,"options":57,"question":62,"source":27,"type":53},[],1071783376,[58,59,60,61],"化学性质","物理性质","力学性质","其他三个选项均不正确","木材的性质主要包括以下哪些性质( )",{"answer":64,"createTime":5,"id":65,"options":66,"question":67,"source":27,"type":28},[],1071783379,[24,25],"由于树皮的外部形态、厚薄、颜色、质地、剥落情况、气味、滋味等各有所不同.因此,树皮是现场识别木材主要的依据之一.( )",{"answer":69,"createTime":5,"id":6,"options":70,"question":18,"source":27,"type":53},[],[8,9,10,11],{"answer":72,"createTime":5,"id":73,"options":74,"question":80,"source":27,"type":53},[],1071783386,[75,76,77,78,79],"甚粗","粗","中","细","甚细","木材的结构是构成木材的细胞大小及差异的程度.按其结构粗细可以分为哪些级( )",{"answer":82,"createTime":5,"id":83,"options":84,"question":85,"source":27,"type":28},[],1071783389,[24,25],"木材的非构造特征是指外界环境作用于木材,在木材上留下一些非木材结构上的特点.( )"]