负责特约商户的开拓与管理、授权请求、结账结算等活动的是()
__________someofthesuggestionsproveofvaluetoyouaswell?
名词解释:验证码
Einstein’snewtheoryonopticschanged__________scientificideaaboutlight.
英译汉:Theemergenceofthebot-aggregatorexchangeasaprimarysaleschannel,whichemploysrulestoenabletransactions.