O2在血液中的运输形式有
参考答案:D
Women have long been neglected, or else they_____a lot more achievements to the country in all fields.
A.will make
B.would have made
C.would make
D.had made
防伪税控系统的两大主要功能指的是()。
A.防伪、识伪
B.防伪、税控
C.开票、打印报表