"China Daily", whose editorial office is in Beijing, also has _____ in all major cities in China. [ ]

A. branches

B. companies

C. organizations

D. businesses

采用氰化物镀液进行电镀时，可使用体积分数为3%～5%稀硫酸溶液进行活化处理，并可直接入槽进行电镀。