Q: 23 (SCRA/2009)
question_subject:
Science
question_exam:
SCRA
stats:
0,80,10,1,3,6,80
keywords:
{'minamata disease': [3, 0, 1, 1], 'heavy metals': [1, 0, 0, 0], 'arsenic': [1, 0, 2, 3], 'mercury': [0, 0, 2, 2], 'fish': [1, 2, 0, 0], 'chromium': [2, 1, 9, 1], 'japan': [0, 0, 1, 2]}