There are a couple of big reasons why Microsoft is able to do so much overseas with so little. Firstly, (21) software products are so easy to manufacture, Gates doesn’t have to worry (22) building and operating factories. (23) , Microsoft contracts (承包) out to others to duplicate and package much of its software. Secondly, and just as important, PCs are (24) cheap and easy to set up, unlike minicomputers, that businesses and governments (25) even the poorest and most backward nations can afford (26) . Of course, there are big problems too. Microsoft must adapt (调整) its products to support (27) of different languages and writing schemes, but that’s another task it (28) increasingly farming out to local contractors.Also, software, like computers, faces stiff tariffs (关税) in many developing (29) . Until recently, for example, India demanded 112% duties (关税) on imported high-tech (30) .