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2 nd option is correct statement
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1) false , false
Reason -: Lubb is 1st heartsound and Dup is 2nd heartsound.
2) True , True....
3) False , False
Reason -: Lubb is produced during ventricular systole and atrial diastole. Dup is produced during ventricular diastole and atrial systole.
Bhai 4th bhi True lg rha h......
Dekh le bhai konsa True h mujhe bhi bta diyo••✌️✌️✌️
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