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【判断题】
发电机密封油分为氢侧密封油和空侧密封油A.
正确
B.
错误
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举一反三
【单选题】What can you infer about some phone carders from the passage?
A.
They want to get additional download profit from teenagers.
B.
They are faced with intense competition in the market now.
C.
They try to expand the sales of phones among adult users.
D.
They provide some free minutes for the young people.
【单选题】The big question that faces Doppelganger is
A.
whether they Can get additional venture capital from investment banks．
B.
whether they Can increase revenue from selling music downloads and band．related goods．
C.
whether they carl find suppliers to sell physical things in the Lounge．
D.
whether they Can develop a critical mass of users and attract mass．market advertisers．
【简答题】面向对象三个基本原则是封装、继承和 。
【单选题】Where can listeners get additional information?
A.
At a project office.
B.
At a website.
C.
On 25th Street.
D.
At the Town Hall.
【单选题】What are the listeners suggested to do if they want to get an additional discount at the online store?
A.
Use their credit card
B.
Speak with a manager
C.
Submit their e-mail address
D.
Buy $100 worth of merchandise
【单选题】海尔集团在出售其空调产品的同时还提供送货上门、免费安装、专业维修等一系列售后服务。这一系列售后服务属于海尔集团所提供的整体产品中的（）
A.
核心产品
B.
有形产品
C.
无形产品
D.
附加产品
【单选题】What's true of high school graduates today?
A.
They can't get additional education without money.
B.
They can get additional education without payment.
C.
They can have additional education when they have full-time jobs
D.
They can have additional education now and pay for it later.
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