Obama questioned McCain's claim to be an agent of change, adding "you can put lipstick on a pig."

麦凯恩自称是变革的动力，奥巴马对他这种说法提出质疑。

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To a successor who has often questioned the reality of climate change, Mr. Obama seemed to say: Be careful.

对这位经常质疑气候变化真实性的继任者，奥巴马似乎在说：要小心。

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Mr. Obama challenged the conspiracy-minded who questioned, and those who justified, the Sept. 11 attacks.

奥巴马先生反驳了那些提出疑点的阴谋论者，以及那些证明9月11日的攻击有理的人。

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Another man,named Azraqy questioned President Obama's motives for the trip: "What will say, what will do?

VOA: standard.2009.05.09

When questioned about the long-standing rivalry between India and Pakistan, Mr.Obama said it is not Washington's role to try to resolve the conflict from the outside.

VOA: standard.2009.11.25

Republicans responded with their own event on Capitol Hill where like-minded economists such as Douglas Holtz Eakin, former adviser to Senator John McCain who lost the 2008 election to President Obama, questioned his approach to recovery.

VOA: standard.2009.12.05

McCain, Clinton and Obama questioned Petraeus and Crocker during their appearance before the Senate Armed Services Committee on Tuesday.

CNN: Iraq hearings highlight differences between McCain, Democrats

Obama keenly questioned Graf about how they were raising their children, how the children understood their racial identity.

FORBES: Dear President Obama: You're No Saul Alinsky

President Barack Obama was questioned about whether he agreed with Mr Crowley's comments at a news conference on Friday.

BBC: PJ Crowley: Bradley Manning's treatment by US 'stupid'