barrier Quiz
EN
[ˈbæɹɪə(ɹ)] [-æɹiə(ɹ)] 
US - Choose the most appropriate answer for each question.
- Question 1 :
- barriers
- barrier
- Question 2 :
- barriers
- barrier
But researchers at the CERN lab near Geneva claim they have recorded neutrinos, a type of tiny particle, travelling faster than the barrier of 186,282 miles (299,792 kilometres) per second.
Finally one of the first three breaks through the barrier, but instead of a jete, he takes an incredible headfirst dive and slides along the floor.
- en barriers
- en barriered
- en barrierless
- en barrierlike
- en barrier reef
Source: Wiktionary