Q91
Flame safety lamp with less than . . . . . . . . candle power had resulted in . . . . . . . . among a large number of coal mines.
A.
0.5; Nystgmus
B.
0.6; Nystagmus
AnswerC.
0.8; Ankylostomosis
D.
0.9; Sidorosis
Answer: Option B
Solution
Answer: Option B
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