64,768, 691 reads ________．

A.sixty four millions seven hundreds and sixty eight thousands six hundreds and ninety one

B.sixty - four millions seven hundred sixty - eight thousand six hundred and ninety - one

C.sixty - four million seven hundred and sixty - eight thousand six hundred and ninety - one

D.sixty four million and seven hundred and sixty eight thousand and six hundred and ninety one

答案及解析： C

英语的数字表达方式与汉语不一样，它是每三位为一个单位，从左至右为thousand，million，billion．如果逗号之后不是0，那么无需加and，如果是0，那么就要加and．百位数后要加and．