mac在u盘新建文件夹:how does mosquitoes drink the blood?(in chinese!)

how does mosquitoes drink the blood?(in chinese!) how does computer works??? how does it feel? how does it feel how does lighting form? how does a clock work? how does a clock work? how does it feel 是什么意思？ How many countries does the mideast include? How does discoloration of fruits take place?