下列有关产品检验的相关叙述,不正确的是() A. 纤维素分解菌的筛选用刚果红染色法 B. 在以尿素为唯一氮源的培养基中加入酚红指示剂只能初步鉴定该细菌能分解尿素 C. 酸性条件下,重铬酸钾与酒精反应呈现蓝绿色 D. 鉴定胡萝卜素时应该观察标准样品中位于展开剂前沿的胡萝卜素层析带With the help of high technology in the past few years, electronic business ______ to bank industry and travel industry.A.appliedB.have appliedC.had been appliedD.has been applied