求帮忙解释下后面修饰的句子。

claraping

Participants in a double-blind study of the effectiveness of experimental drugs will be divided into two groups, one which will receive only placebo medication.

• Aone which
• Bone of which
• Cand one of which
• Done of whom
• Eone of them
  

我完全理解one of which will receive...是修饰groups的，这种修饰性的句子是怎么要求的？而且这不成了两个句子并列了么？中间不加个and 么？

疯狂的狐狸

which 引导的subordinate clause

sangjinghui9

one of which 不是解释two groups 的同位语么？

emmahiggins09

呃，不是，这里one of which 是subgroup modifier.

one of which, 这里which 指代的是groups, 这种情况下是从句所以不用连词。

推荐你看下Manhattan语法里subgroup modifier 的解释，说的非常的清楚