关于手正位摄片的叙述,正确的是
A、将第3掌骨近端放在照射野中心C
暂无解析
Thelocaltextilemillhas800workers,_____700arewomen.
曲线y=x^33x^25x4的拐点坐标为()
Thelittlegirlisignorant_____thebasicrulesofEnglishgrammar。
设三角区域D由直銭x+8y-56=0,x-6y+42=0与kx-y+8-6k=0(k<0)围成,则对任意的(x,y),有㏒(x2+y2)≤2
(1)k∈(-∞,-1]
(2)k∈(-1,1/8]
Successfullearningisnota(n)________activitybutconsistsoffourdistinctstagesinaspecificorder