ہم کس طرح مدد کر سکتے ہیں؟
Kai Burghardt
https://ORCID.org/0000-0003-2117-3974
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Unsupported browsers – please stick to industry standards (HTML5, CSS3, …) not vendor‑specific extension
Please remove this stupid Khan Academy does not support this browser.To use Khan Academy you need to upgrade to another web browser. Just select one of the options below to start upgrading.Mowzill...
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Total activity 323
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Last activity
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Following 0 users
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Followed by 1 user
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Votes 269
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Subscriptions 25
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Total activity 323
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Last activity
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Member since
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Following 0 users
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Followed by 1 user
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Votes 269
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Subscriptions 25