The country is right in the centre of the Indo-Burma biodiversity hotspot, one of the most biologically important regions of the planet. We know there are still large areas of good quality forest in Burma, which could be among the last real strongholds for a huge range of species.

请问：

(1) which 引导的定语从句的先行词是？

【答】forest

(2）among 是否等于one of？

【答】可以。