单项选择题A.parentB.motherC.head officeD.original
单项选择题A.businessB.co-operationC.incorporateD.corporate
单项选择题A.andB.butC.howeverD.either
单项选择题A.broadlyB.sizablyC.competitivelyD.largely
单项选择题A.analyticalB.analystC.analysisD.analysts