2010年12月英语六级听力练习十三

The international spy museum is no more than 10 kilometers from where 3 of the Russian agents lived just outside Washington. And near the entrance to the exhibit are photos of uncovered Soviet spies. In a separate room is _________________________________. 

This is a car from a James Bond movie. On a normal day, this would be a hit of the exhibit, as would the pistol made to look like a lipstick and a lethal umbrella. But on this day, in light of the spy scandal, perhaps the most popular display is_________________________________. It contains a hidden message. Historian Mark Stawt says this method of passing on data was used by the recently deported Russian agents. 

"In this particular case, we have a purchase order. And then, underneath it, we have a secret message hidden, which comes out under ultraviolet light. _________________________________. It's been around for centuries and the Russians used it in this recent case."