[求助]11OG-163

 Found throughout Central and South America, sloths hang from trees by long rubbery limbs and sleep fifteen hours a day. moving infrequently enough that two species of algae grow on its coat and between its toes.

(A)  sloths hang from trees by long rubbery limbs and sleep fifteen hours a day, moving infre­quently enough

(B)   sloths hang from trees by long rubbery limbs, they sleep fifteen hours a day, and with such infrequent movements

(C)  sloths use their long rubbery limbs to hang from trees, sleep fifteen hours a day, and move so infrequently

(D)  the sloth hangs from trees by its long rubbery
                limbs, sleeping fifteen hours a day and
                moving so infrequently

(E)   the sloth hangs from trees by its long rubbery
                limbs, sleeps fifteen hours a day, and it moves
                infrequently enough

WHY NOT C BUT D??

1。sloths 和 its 不一致

2。有歧异，好像sloth 不仅需要用limbs去hang, 也需要用limbs去sleep and move

还是不太懂噢～～～

C 的 sloths 和 two species of algae grow on its coat and between its toes. 不一致

D 有歧义，好像不平行，又好像修饰有问题…… 不过，相比之下，E 的问题更大，最后的代词 it 没有必要，而且结构没有用 so...that 好。

希望有NN给说说。