(单选题)

______ the numbers of such developments are relatively small, the potential market is large.

A.As

B.While

C.When

D.Since

参考答案：B

参考解析：

考查让步状语从句。句意：尽管此类开发项目的数量相对较少，但潜在市场很大。as和while都可以引导让步状语从句，但as在引导让步状语从句时要进行倒装，如：Child as he was, he knew what was the right thing to do. 故选B。

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