9. It was an increase in reported cases of malaria along the Gulf Coast that in 1921 led the health authorities’ granting a permit for experimentation with human subjects to the group that later would be called by the name of Unimedco.
(A) authorities’ granting a permit for experimentation with human subjects to the group that later would be called by the name of
(B) authorities’ granting a permit for experimentation with human subjects to the group that later to be called by the name of
(C) authorities’ granting a permit for experimentation using human subjects to the group that later would be called by the name of
(D) authorities to grant a permit for human experimentation to the group later called
(E) authorities to grant a permit for human experimentation to the group that later would be called by the name of
答案选D,请教如何区分DE选项?
[此贴子已经被作者于2005-12-12 10:49:33编辑过] |