prep07 50 比较省略的问题

旧未来

50. (27159-!-item-!-188;#058&003134)

Many teenagers undergo stress, but results of a recent study indicate that the patterns of stress that
girls experience are more likely to result in depression than are those that boys experience.

(A) are those that boys experience
(B) what boys experience
(C) boys' experience would
(D) boys' stress patterns do
(E) stress patterns of boys

答案是A
A是倒装了么，不明白这种结构。
还有能不能去掉A的are，因为前面stress that girls experience are more likely to已经有are了，可以省略相同的are么？
如果不可以，以后怎么判断能不能省略are,do之类的词。
E末尾加are，算对么？
谢谢啦~