General Knowledge MCQs, PPSC Labour Officer Past Paper MCQs 2020, PPSC Solved Past Papers MCQsWhat navigation system is used in China? Posted on March 15, 2021August 2, 2021 by adminA. Doe Bei B. BeiDou C. Both D. None Continue reading →Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)