Manyoilcompaniesarenowmakingalternativeenergy___________inanefforttoremaincompetitiveinfutureenergymarkets.
A.payments B.contributions C.donations D.investments正确答案D
Manyoilcompaniesarenowmakingalternativeenergy___________inanefforttoremaincompetitiveinfutureenergymarkets.
A.payments B.contributions C.donations D.investments正确答案D