Susilo Bambang Yudhoyono has been sworn in for a second five-year term as president of Indonesia, the world's most populous¹ Muslim nation.

Susilo Bambang Yudhoyono宣誓连任另一个五年任期的印度尼西亚总统，一个世界上人口最稠密的穆斯林国家。

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Susilo Bambang Yudhoyono is seen as a corruption-free, reliable leader

Mr Yudhoyono won a resounding³（响亮的） victory at the polls in July, in part because he had clamped down on（进行压制） corruption.

Under him, the anti-corruption agency has become a powerful state body.

But correspondents say he now faces other challenges, including terrorism, the aftermath of September's earthquake in Sumatra and high unemployment.

The BBC's Karishma Vaswani in Jakarta says Mr Yudhoyono will have to prove to his voters that they chose the right man.

In July's election, the president won 60.8% of the vote, 34% more than his nearest challenger, Megawati Sukarnoputri, a former president and daughter of independence hero Sukarno.

Mrs Megawati and the third-placed candidate, outgoing Vice-President Jusuf Kalla, later demanded that his victory be annulled⁴（取消）, saying the voting lists had been inaccurate⁵ and millions of votes miscounted.

Bt the Constitutional Court ruled in August that there was no evidence to support their allegations.