Bangla Video Tutorial

Bangla Video Tutorial We have made a bangla video tutorial according to the ICT syllabus for HSC level of Bangladeshi students. If you like this video tutorial please contact us at We are too much grateful to our coordinator Mr. Md. Muzammel Hoque, Lecturer, Teachers’ Training College, Mymensingh and>>

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Ultrasonogram in pregnancy

Ultrasonogram in pregnancy   Ultrasonography uses probe containing multiple acoustic transducer to send pulse of sound wave in to a material. When the sound wave encounter a material of different density part of sound wave reflected back in to the probe and it is detected as an echo. The time>>

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