移动4G技术使手机上网的速度越来越快，视频通话、互联网游戏、

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移动4G技术使手机上网的速度越来越快，视频通话、互联网游戏、高清电影在线观看等将成为智能手机的主流应用，用户在乘坐公交、购物就餐等场合也将实现刷手机付费。4G技术的运用
①将拉动消费需求，催生增长热点 ②可促进消费升级，带动产业转型
③能改善消费环境，保障网络安全 ④会推动创业就业，改善人民生活

A．①④

B．②③

C．①②

D．③④

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相关试题

The witnesses_________ by the police just now described the fight quite differently.

A．questioned	B．being questioned
C．to be questioned	D．questioning

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Those postcards were so lovely that they_________ in no time.

A．sold	B．had been sold
C．were sold	D．have been sold

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John kept looking at the pretty girl, wondering whether he_________ her somewhere.

A．saw	B．has seen
C．sees	D．had seen

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-1 hear you've got a set of valuable coins.___________ I have a look?
-Yes, certainly.

A．Will	B．May
C．Shall	D．Should

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The girl had been suffering from the lung cancer, yet she acted as if nothing__________ to her while we were together.

A．happened	B．would happen
C．has happened	D．had happened

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