स्टेथोस्कोप का आविष्कार क� – McqOptions

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1.	स्टेथोस्कोप का आविष्कार किसने किया था ?
A.	जेनर ने
B.	लैनी ने
C.	सेबीन ने
D.	पाश्चर ने
Answer» C. सेबीन ने

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