Question

the vaccination against colds is impossible because ... it lasts for five to seven days. there are more than 80 different constantly mutating rhinoviruses. the body’s own defense mechanisms need to fight the viruses، المذاكرة طريق يفتح لك المستقبل، وكل دقيقة تقضيها الآن تقربك من حلمك، خليك ثابت ومؤمن بقدرتك دائمًا على النجاح القادم.

اهلا بك من جديد في ساعــــدنــي ، لو حسيت بصعوبة الدروس، افتكر إنك قادر، وخلي شغف التعلم يدفعك، كل لحظة دراسة تبنيك وتزود قوتك الحقيقية مع الوقت.

سؤال :the vaccination against colds is impossible because ... it lasts for five to seven days. there are more than 80 different constantly mutating rhinoviruses. the body’s own defense mechanisms need to fight the viruses؟

إجابة الطالب هي:

there are more than 80 different constantly mutating rhinoviruses.

Answer 1

the vaccination against colds is impossible because ... it lasts for five to seven days. there are more than 80 different constantly mutating rhinoviruses. the body’s own defense mechanisms need to fight the viruses