The ZnO nano-film was prepared by sol-hydrothermal dip coating method using ZnAc2?2H2O as the starting material. The str...
语文拼读作业(y w)(yā zi yǔ yī d yī wū zi y mǐ w zi xi yǔ wū yāyī fu qīnɡ wā xiǎo y )( 复习) chī xīɡuā shū h b...