Afterwards, we received a letter, in which he offered an a____ for his rudeness at the party.
汉武帝时期创办的太学意义在于①提高了儒学的地位 ②打破了贵族官僚世代为官的规矩③带动了民间积极向学的风气 ④促进了封建教育的发展
在原始地球条件下,氨基酸等简单有机小分物质的生成和原始生命的诞生场所分别是( )