do research可数吗

　　They can do research into these materials.

　　他们可以深入研究这些资料。

　　Do you do research before making major purchases?

　　你在购买大件物品之前会作一些调查研究吗？

　　This is a newly built lab for them to do research.

　　这是一个为了让他们搞研究而新建的实验室。