Thetwomainprintmediais:（）
A、computerandprinterD
暂无解析
Agingparents
Managersknowthatstressisabarriertomotivatingtheworkforce.
Aging parents
Whatismostimportantwhenlaunchingnewproducts,flankerbrandsextensionsofwell-knownbrands,orinfrequentlypurchasedbrands;orgoingafteranundefinedtargetmarket.（）
Do you think companies should provide sports facilities for their staff?(Why?)
