优质碳素钢的牌号采用两位阿拉伯数字表示碳的质量分数的平均值，以（）计。
A、百分之几C
暂无解析
Hetreatsit____arequestforinformation.
题目：Describinggraphs
Locatenursingcarefacilities
Whatismostimportantwhenlaunchingnewproducts,flankerbrandsextensionsofwell-knownbrands,orinfrequentlypurchasedbrands;orgoingafteranundefinedtargetmarket.（）
Ioftenthoughtofmychildhood,____Ilivedonafarm.
