某蛋白的等电点为4.8，它在pH8.2的缓冲液中呈何种离子性质
A、正离子B
暂无解析
Heinsuredhiscar________hehadanaccident.
Theprofessorworkedfor7hoursata________.
Shedisagrees______him______everything.
In1900,theUnitedStatesrankedfirstintheworldintheproductionof________.
Withthepublicationof(),TheodoreDreiserwaslaunchinghimselfuponalongcareerthatwouldultimatelymakehimoneofthemostsignificantAmericanwritersoftheschoollaterknownasliterarynaturalism.
