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رد: studying biology with الهوجاس خاص لـ nurses
اقتباس:
Which of the following is correct, concerning the human heart?
a- its wall is mostly composed of cardiac muscle
b- has two atrioventricular valves
c- has four chambers
d- all of the above are correct
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اتوقع انو الكل صح ..بس الاولى مو متأكدة منها ..ممكن احد يشوفها لي؟؟:mh19:
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