Consider the following types of vehicles:
I. Full battery electric vehicles
II. Hydrogen fuel cell vehicles
III. Fuel cell-electric hybrid vehicles
How many of the above are considered as alternative powertrain vehicles?
निम्नलिखित प्रकार के वाहनों पर विचार कीजिए : I. पूर्ण बैटरी विद्युत वाहन II. हाइड्रोजन ईंधन सेल वाहन III. ईंधन सेल-विद्युत हाइब्रिड वाहन। उपर्युक्त में से कितने वैकल्पिक पावरट्रेन वाले वाहन माने जाते हैं?
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