Computer（）focuses on protecting information ，hardware ，and software from unauthorized us

Computer （） focuses on protecting information，hardware，and software，and software from una

● The computer you are using is protected usually by （75) . （75)A. password B. key C. mou

● The computer you are using is protected usually by （75) . （75)A. password B. key C. mou

● The computer you are using is protected usually by （75) . （75)A. password B. key C. mou

● （73） is the first line of protect between your computer and the public Internet. （73）A.

The company focuses its business on natural gas.