A Coombs test (also known as Coombs' test, antiglobulin test or AGT) is either of two clinical blood tests used in immunohematology and immunology.he indirect Coombs test (also known as the indirect antiglobulin test or IAT) is used to detect in-vitro antibody-antigen reactions. It is used to detect very low concentrations of antibodies present in a patient's plasma/serum prior to a blood transfusion.
East China becomes wetter as a prelude to the late spring/summer monsoon season. Around half the month sees daily drizzle. The average high and low temperatures are 14Â°C (57Â°F) and 6Â°C (43Â°F). It is quite windy.
Anyway, most of the city's tourist attractions are historical sites that are not affected by the change of season. Therefore, tourists can come to Beijing all year round. January is the coldest month with an average temperature of only 4.5ÂºC, while July is the hottest with an average of 28ÂºC. In autumn and spring, jeans and a sweater are usually enough. T-Shirts and shorts and very high factor sun cream are for the summer.