Uruguay has voted in elections which pitted a left-wing ex-guerrilla leader against a former president - and the result too close to call.

乌拉圭总统选举，左翼前游击队领袖对抗前总统，结果难分胜负。

Jose Mujica has a reputation for speaking his mind

Exit polls indicated frontrunner Jose "Pepe" Mujica had won almost enough votes for an outright¹（率直的，完全的） victory.

If the ruling party socialist² cannot pass the 50% threshold（极限，门槛）, he will face a run-off against his conservative rival Luis Lacalle, the former president.

The winner will replace outgoing socialist President Tabare Vazquez.

Exit polls on Sunday suggested 74-year-old Mr Mujica had gained about 48% of votes, with Mr Lacalle trailing on around 30%.

A 29 November run-off would take place between the two frontrunners.

Whoever eventually wins the presidential vote will not take office until March next year.

Mr Mujica, a senator of the governing left-wing Broad Front Party, was a former member of the rebel Tupamaros movement in the 1960s and 1970s.

He has pledged to remove the income tax imposed by President Vazquez and trim（修剪，整理） the size of government in the country of 3.4 million.

Mr Lacalle, famed for having survived an attempt to poison him - and other National Party leaders - with tainted³（感染的，污染的） wine in the 1970s, is a 68-year-old lawyer.

During the election campaign, he sought to capitalise on concerns among some voters about his rival's militant⁴ past.

Mr Lacalle has crafted a political comeback 14 years after leaving office when his senior aides were accused of corruption⁵.

As well as presidential and congressional elections, voters also took part in a referendum（公民投票，请示书）.

That will decide whether to revoke⁶（撤回，取消） a law which gives immunity⁷ to former security officials accused of human rights abuses during Uruguay's period of military rule.