When carbon is added to iron in the proper proportions , the result is steel.
A、containerD
暂无解析
Creamoftartar酒石,aweakacid,canbeaddedtoeggwhitestohelpthemfoam泡沫whentheyarebeaten
Someseaurchins海胆havevenomous(toxin)spines
Insectpestsareamongtheleadingcausesofcropfailure.
ThecompanyissuesanannualreporteveryMarch.
WhileBillieHolidaydidnotinventthemusiccalled"theblues",shemostassuredlyhelpedpopularizeit.
