雅思阅读材料：梅德韦杰夫对美核政策表示欢迎_雅思英语阅读

雅思阅读材料：梅德韦杰夫对美核政策表示欢迎

　　Mikhail Margelov, head of the Federation Councils foreign relations committee, said the treaty represents a shift away from cold war mentality and demonstrates that Russia and the US are focused on achieving 21st-century global security.

　　Its ratification in both countries will be seen as step forward after a difficult period in bilateral relations since Medvedev and Barack Obama signed the treaty in Prague in April.

　　Two months after that meeting, the US exposed 10 Russian sleeper agents living in New York and Washington, although the fallout was partly defused when they were exchanged for four men jailed in Russia who had allegedly worked for western intelligence agencies.

　　Relations appeared to be warming last month when the Nato military alliance invited Russia to participate in a US-led missile defence system about which Moscow is deeply suspicious. But the thaw came under threat when WikiLeaks revealed US diplomatic cables suggesting Russia is a mafia state.

　　Analysts say the treaty overrides such irritants, showing progress in the attempts to improve ties with Russia, which began after Obama came to power.

　　Sergei Rogov, head of the influential US and Canada Institute in Moscow, told the RIA Novosti news agency: It is, of course, a positive step and it shows that the re-set in Russian-American relations is bringing real results, but the question now is, what next?