"Why?" he questioned.

“为什么？”他质问道。

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On November 3rd he questioned Olympia Snowe's place within the Republican Party.

11月3日，他曾在共和党内对欧林皮亚-斯诺的职位提出质疑。

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But he questioned whether the ancient redwoods were really the best type of tree to be cloning.

但斯蒂恩同时也质疑了古老红杉是否就是树木克隆的最佳选择。

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One of his early programs was a history show where he questioned actors playing people like Aristotle and Joan of Arc.

VOA: special.2009.08.16

He questioned a statement made in one of Lincoln's campaign speeches.

VOA: special.2009.06.11

He questioned whether H.I.V. even caused the disease.

VOA: special.2010.04.28

But he questioned whether it would be possible to look at cells deeper within the brain.

BBC: NEWS | Health | Tool to help find new brain drugs

And he questioned spending cuts to the intelligence, counter-terror police and UK Border Agency budgets.

BBC: Air freight from Yemen and Somalia banned

But he questioned how the government's decision would help resume talks between the two camps.

BBC: UK to 'abstain' on Palestinian statehood bid