Laos has a land area about the same as Great Britain but only four million in population, where many are members of hill tribes ensconced in the virtually inaccessible mountain valleys of the north.
Laos has a land area about the same as Great Britain but only four million in population, where many are members of hill tribes ensconced in the virtually inaccessible mountain valleys of the north. (A) about the same as Great Britain but only four million in population, where many (B) of about the same size as Great Britain is, but in Laos there is a population of only four million, and many (C) that is about the same size as Great Britain's land area, but in Laos with a population of only four million people, many of them (D) comparable to the size of Great Britain, but only four million in population, and many (E) comparable to that of Great Britain but a population of only four million people, many of whom C选项错误,OG里给的解释是them指代不明。但在此句中很明显,them只有可能指代four million people。盼望牛牛们解答。