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Suppose your university is going to host an English contest by the name of "Green Travel".

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在危险货物包装中盛装具有较大危险性的货物，包装强度要求高的为（）类包装。

A. Ⅰ
B. Ⅱ
C. Ⅲ
D. Ⅳ

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Amazon today unveiled Dash Buttons, an easy way for customers to【C1】select bulk goods【C2】an internet-connected button, and yesterday【C3】Home Services, an on-demand installation and handyman service. Combined, they show that the e-commerce giant has a clear understanding of how the Internet-of-things will【C4】its business. And it isnt going to be shy about capitalizing on connectivity to build its bottom line. Dash Buttons are an adaptation of Amazon s【C5】-controlled Dash ordering system that lets people speak to order new【C6】items. So【C7】Amazon has is a retrofit strategy for connecting smart appliances to its e-commerce operations and a future-facing strategy for the coming flood of【C8】devices. And all of this is geared around making buying products from Amazon as easy as possible. The【C9】of one-button tasks are appealing,【C10】it could lead to a【C11】of packages ending up at peoples doors if Amazon doesnt try to【C12】waste on its end, by grouping shipments together when possible. People on Twitter seem mostly【C13】about pets and small children playing with the Dash Buttons and ordering multiples of their Kraft Macaroni and Cheese boxes, although Amazon notes that【C14】the button is pressed more than once, the order doesn t go【C15】on the second time, and youll get a smartphone notification about it. Amazon also recently launched Home Services, following up on last year s opening of a home automation e-store devoted to connected gadgets for the home—many of which require a【C16】installer. So now Amazon can sell these devices along with the person who can install them. It also is【C17】on maintenance, via a network of service providers that it can call【C18】for its network of suppliers or for its own planned connected home play. With Dash, its【C19】an offensive play to【C20】up more sales as devices come online. With Amazon Home Services, it s making a defensive play as other large companies try to become more vertically integrated.
【C1】

A. choose
B. buy
C. order
D. get

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According to Dr. Gallup, people in a meeting may yawn when______.

A. the meeting room is overheated
B. other people around them yawn
C. a meeting is brief and interesting
D. the air-conditioner temperature is lowered

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Lindsay Eierman says she didnt sleep well last night because______.

A. yawning is her problem
B. her colleague doesn" t forgive her
C. she feels very sorry for yawning at the office
D. she regards sleep deprivation as the reason of yawning

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