Question:
Pick out the unmatched pair from the following Question Type
Last updated: 6/7/2023
![Pick out the unmatched pair from the following Question Type](https://media.kunduz.com/media/sug-question-candidate/20210327072124158085-1348182.jpg?h=512)
Pick out the unmatched pair from the following Question Type Single Correct Type 1 Moderator Heavy water 2 Nuclear fuel 92U235 3 Safety rods Carbon Roactor is critical Multiplication factor i