英語翻譯the diffrences between the written and oral modes of exp

題目：

英語翻譯
the diffrences between the written and oral modes of experession are not without consequences for an understanding of Native American literature
這句中的be動詞are是針對的誰?

解答：

寫作與口頭表達方式之間的差異對於了解美國的本土文學有些許影響.
be根據differences爲are.
without consequences for 沒有影響