Which of the following descriptions about Russia and Soviet Union is CORRECT?

以下哪一项关于俄国和苏联的描述是正确的？

youdao

After the Soviet Union's collapse, "anxiety for the future" depressed birthrates in Russia and Eastern Europe.

苏联解体后，“对未来的焦虑”使得俄罗斯和东欧的（人口）出生率下降。

youdao

Another source might be Russia, Ukraine and other former Soviet-block countries, which have plenty of helicopters, but have so far offered few of them.

另一个来源则是俄罗斯、乌克兰以及其它前苏联加盟国家，这些国家都拥有大量直升机，但迄今为止只提供了极少的数量。

youdao

Richard Pipes,a leading authority on Russia and a former anti-Soviet crusader who served in the Reagan administration, also stresses Mr.Gorbachev's pivotal role.

VOA: standard.2009.11.03

One is Dubna in the former Soviet Union in Russia, one is in Darmstadt in Germany and the third one is in the United States in Berkeley.

一个是在杜布纳，位于前苏联的俄国，一个在德国的达姆施塔特,第三个是在美国的伯克利。

麻省理工公开课 - 固态化学导论课程节选

He adds that,unfortunately, post-Soviet countries, including Russia and Ukraine, have also preserved the Soviet system in which historians are funded by the state, rather than private foundations.

VOA: standard.2009.12.25

This Kosovar tycoon made his fortune as a builder in Russia and the former Soviet Union and has plastered Kosovo with posters of the Kremlin and other buildings he worked on, stating how many Kosovars he employed on each.

ECONOMIST: Independence is not quite in the bag

However, Belarus has been able to overcome some of these economic difficulties due to its key location as a transit route for the raw material transported between Russia and other former Soviet Republics to Western Europe, and to large Russian subsidies.

CENTERFORSECURITYPOLICY: Chavez comes to the aid of Lukashenko

Relations between Russia and the former Soviet Republic of Georgia have been tense for some time.

NPR: Russia and Georgia Dispute Spies, Soldiers