OG-12th-136

糊香肠

136. Whereas in mammals the tiny tubes that convey
nutrients to bone cells are arrayed in parallel lines, in
birds the tubes form a random pattern.
(A) Whereas in mammals the tiny tubes that convey
nutrients to bone cells are arrayed in parallel
lines, in birds the tubes
(B) Whereas the tiny tubes for the conveying of
nutrients to bone cells are arrayed in mammals
in parallel lines, birds have tubes that
(C) Unlike mammals, where the tiny tubes for
conveying nutrients to bone cells are arrayed in
parallel lines, birds’ tubes
(D) Unlike mammals, in whom the tiny tubes that
convey nutrients to bone cells are arrayed in
parallel lines, the tubes in birds
(E) Unlike the tiny tubes that convey nutrients to
bone cells, which in mammals are arrayed in
parallel lines, in birds the tubes

能选对答案A，想知道whereas的用法~~谢谢~~

linshigong

这个lz还是自己查字典吧....

糊香肠

人呢？？