कोयला-गैस का उपयोग प्रथम ब� – McqOptions

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1.	कोयला-गैस का उपयोग प्रथम बार सड़को पर रोशनी के लिए किस स्थान पर किया गया ?
A.	लदंन
B.	बर्लिन
C.	न्ययॉर्क
D.	बोस्टन
Answer» B. बर्लिन

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