下列各项中,属于波特价值链理论下辅助活动的是()。
A. 采购
B. 进货后勤
C. 发货后勤
D. 服务
A.fundingB.providingC.payingD.charging
A. funding
B. providing
C. paying
D. charging
A.buildB.useC.becomeD.do
A. build
B. use
C. become
D. do
A.beforeB.agoC.afterD.later
A. before
B. ago
C. after
D. later