[問題]SC885 sectionB-21

[uniqueben]

A peculiar feature of the embryonic mammalian circulatory system is that in the area of the heart the cells adhere to one another, beating in unison and adopting specialized orientations exclusive of one another.
(A) beating in unison and adopting
(B) they beat in unison while adopting
(C) beat in unison, and adopt
(D) beating in unison yet adopting
(E) even though they beat in unison and adopt

答案是D，想請問一下A錯的原因是什麼？
如果是句意，那D的句意又是什麼呢？

[游客]

這是大全上注釋上面的解答你參考看看
beating in unison yet adopting作狀語修飾adhere。
因為beating in unison與adopting specialized orientations exclusive of one another在意思上是相反的，所以用yet而不是and。
abhere, beat and adopt這裏不能當三個連續的動作。

[sweetymanman]

可以幫忙翻譯一下嗎？其實看不是很懂說....