Question Type
Mutliple choice question
Question
Each frame of NTSC video is composed of how many fields?
Answer
No
24
No
29.97
Yes
2
No
5
Old Node ID
3950
Answer Json
{answers:[{answer:24,img:},{answer:29.97,img:},{answer:2,img:},{answer:5,img:}],correct:3}
Old Lesson reference ID
1295