a. variation in the levels of treatment delivered by a program can be a major threat to the validity of even randomized evaluation studies b. uncontrolled variation in treatment is equivalent to unreliable measurement of the independent variable ...
Domestic sales and service network has covered 15 major cities in China, meanwhile our bearing has sold more than 60 overseas countries and regions. Our bearings have been widely used in agriculture, textiles, mining, printing and packaging industries,...
the major decisions of the above-mentioned enterprises, the problem should be submitted to the representative assembly of the workers Congress.Three, issues raised and identified by the programThere are about 1, involving the vital interests of workers is an important problem and important enterprise...
Stick to the business management philosophy that"Starting from the customer needs and ending with their satisfaction",focusing on customer demands and exceeding their expectations.Agile and quick to react to c...