皮皮学，免费搜题
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【单选题】
企业向现有顾客提供新的、与原有业务不相关的产品和服务,这一战略是( )。A.
混合多元化
B.
横向多元化
C.
同心多元化
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】My father gave up __________ only one year ago.
A.
teaching
B.
have taught
C.
to teach
D.
teach
【简答题】防火墙根据防范的方式和侧重点不同,可以分成三大类:____________、___________和________________。
【简答题】的中文全称是______。
【简答题】的英文全称是Virtal Private Network ，中文译名为_____。
【简答题】Yesterday I was tidying up my room. I found 31 old box of my father’s .He gave 32 to me two years ago. It was really interesting to discover some of my father’s childhood 33 .He once told me 34 he wro...
相关题目：
【单选题】My father gave up __________ only one year ago.
A.
teaching
B.
have taught
C.
to teach
D.
teach