The presenters noted that these options can be used in any combination to scale applications either up or down.

主讲人指出，我们可以任意组合使用这些方案，从而增大或者减小应用程序的规模。

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Keep this up and before you know it, you'll be adding humor to your speaking Arsenal and you'll become one of the outstanding presenters in your business.

坚持做下去，直到自己能从中领悟到真谛，幽默将会成为你身上言谈举止的一张名片，你也能在商务场合像商务人士一样游刃有余。

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The identities of the presenters on the awards night have also been kept a secret when in previous years the Academy revealed presenters in the weeks building up to the ceremony.

颁奖嘉宾的身份也还是个谜，以往都是在颁奖前几周公布颁奖嘉宾的。

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The authorities are attempting to put pressure on BBC journalists by arresting their family members in Tehran, it says, and false Facebook pages have been set up where presenters and other staff members admit to allegations of sexual misconduct and working for the M16.

BBC: Iran 'intimidating BBC journalists'

The cab driver is one of a number of guest presenters signed up by the station to co-host the mid-afternoon slot while Danny Baker goes on holiday.

BBC: Mitch Winehouse

Toby Syfret of Enders Analysis, a consultancy, argues that the BBC's heavy spending is in fact bidding up the cost of presenters and programmes, making it harder for Channel 4 and the other networks to survive.

ECONOMIST: Public-service broadcasting