Title: वैकल्पिक

Text: For blood flow to occur between any two points in the circulatory system, there must be a difference in the energy level between these two points. Usually, the difference in energy level is reflected by a difference in blood pressure, and the circulatory system generally consists of a high-pressure, high-energy arterial reservoir and a venous pool of low pressure and energy. प्रत्येक पराग्राफले परीक्षण हुनेछ।

Save test: यदि तपाईं यो टाइपिङ परीक्षणलाई साझा गर्न चाहानुहुन्छ भने यो प्रयोग गर्नुहोस् (केवल प्रमाणीकृत प्रयोगकर्ताहरूको लागि)।