निम्नलिखित में से किनकी भित्तियों पर रक्त द्वारा डाले गण् दबाव को " रक्त दाब " कहते है ? - The pressure exerted by blood on the walls of which of the following is called "blood pressure"? - NimnLikhit Me Se Kinki bhittiyon Par Rakt Dwara Dale gan Dabav Ko " Rakt Daab " Kehte Hai ? General Science in hindi, Biology shira question answers in hindi pdf dhamni questions in hindi, Know About Heart General Science online test General Science notes in hindi quiz book Koshika