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.
(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 (E) comparable to that of Great Britain but a population of only four million people, many of whom 答案E OG解释 C中them指代不清。怎么就指代不清了啊? 关于指代问题。。。纠结
恩~manhattan上面有说明~(1) This model explains all known subatomic particles, some of which were only recently discovered. (2) This model explains all known subatomic particles, some of them only recently discovered. (3) This model explains all known subatomic particles, some only recently discovered