Distinct molecules called agglutinogens (a type of antigen) are attached to the surface of red blood cells. There are two different types of agglutinogens, type A and type B. Each type has different properties.
MDB: Geodatabase. The geodatabase is a collection of geographic datasets of various types, with the most basic types being vector, raster, and tabular data. There are three types of geodatabases: file, personal, and ArcSDE. Geodatabases are the native data format for ESRI's ArcGIS.
In order to open CGM file download one of the software. This is a vector image format that was developed for supporting the needs of several imaging programs. It was originally used for clip art libraries, but newer revisions of this format (based on the ISO/IEC 8632 standard) are usually used for CAD drawings.