It flakes very nicely into really sharp points.
It flakes very nicely into really sharp points.
obsidian is a black,
volcanic,well,almost like glass.It flakes very nicely
into really sharp points.The sharpest tools of the entire Stone Age
were made of obsidian.这个是原文的语境
obsidian is a black,
volcanic,well,almost like glass.It flakes very nicely
into really sharp points.The sharpest tools of the entire Stone Age
were made of obsidian.这个是原文的语境
英语人气:167 ℃时间:2020-06-17 06:42:40
优质解答
黑曜石是黑色的,火山喷发形成的,well?的玻璃.有规则的逐层剥落形成锋利的尖端.石器时代最锋利的工具就是用黑曜石制作的.
我来回答
类似推荐
- The cat's paws are very sharp划线提问very sharp
- It can open the way into people’s minds and hearts,into a culture (文化) very different from the one of your own.This will
- The game can run into your me is really very happy i really loves you,
- 首字母填空It was 21st November,1783,in Paris.Two y___ men went into a very,very big balloon.They
- the knife __he cut the bread is very sharp
猜你喜欢
- 1How is your Chinese teacher like?____does you Chinese teacher ___?
- 2求.小学整数四则混合运算练习题
- 3为什么物体在空气中下落的速度越大,空气阻力越大;而在水平面上一个物体所受的摩擦力大小与其运动速度无关?
- 4正三棱柱ABC-A1B1C1中,D为AC中点,当AB1垂直于BC1时,求二面角D-BC1-C的余弦值
- 5一块长方形的铁皮长2.1米,宽1.5米,用它做底面直径是40厘米,高是50厘米的直圆柱形无盖圆桶,最多做几只
- 6他尽最大努力学法语,但失败了.英文翻译为
- 7在横线上写出物质的化学式,在括号里标明(金属、非金属、金属氧化物、非金属氧化物、碱、酸、盐)
- 8(1+2+3+4+5+6+5+4+3+2+1)除以666666平方
- 92,4,10,10怎么算了才等于24
- 10已知:如图,在▱ABCD中,对角线AC交BD于点O,四边形AODE是平行四边形.求证:四边形ABOE、四边形DCOE都是平行四边形.