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【多选题】
在大数据背景下,电子商务的价值创造方式呈现了以下哪些变化?A.
电子商务营销精准化和实时化
B.
产品和服务高度差异化和个性化
C.
价值链上吸引运作一体化和动态化
D.
新型增值服务模式不断涌现
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举一反三
【单选题】— He hardly spent any time on his subjects, _________? —_________, so he did badly in his lessons.
A.
didn’t he; Yes
B.
did he; Yes
C.
didn’t he; No
D.
did he; No
【单选题】So badly _____ in the car accident that he had to stay in hospital for several weeks. [ ]
A.
did he injure
B.
he injured
C.
was he injured
D.
he was injured
【单选题】--- He hardly spent any time on his subjects, ____________ ? --- _______________, so he does badly in his lessons.
A.
didn’t he, Yes
B.
did he, Yes
C.
didn’t he, No
D.
did he, No
【单选题】So badly ______ in the car accident that he had to stay in hospital for several weeks.
A.
did he injure
B.
he injure
C.
was he injured
D.
he was injured
【单选题】So badly ______ in the accident that he was sent to a hospital.
A.
did he hurt
B.
he was hurt
C.
was he hurt
D.
be did hurt
【单选题】So badly ______ in the car accident that he had to stay in hospital for several months. [ ]
A.
did he injure
B.
injured him
C.
was he injured
D.
he was injured
【单选题】So badly ______ in the accident that he had to rest for a few days at home.
A.
did he wound
B.
he was wounded
C.
he wounded
D.
was he wounded
【单选题】He plays well or badly according to his mood (心情), so he’s a very _________ player.
A.
modest
B.
easygoing
C.
temperamental
D.
calm
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