单项选择题同匹料左、中、右(布幅两边与中间)之间的色差指的是____。A、匹色差 B、段色差 C、边色差 D、正反面色差
单项选择题A regular customer's general inquiry usually includes__________. A、time of shipment B、packing conditions C、mode of payment D、 prices and catalogs