Why is it difficult to control the spread of malaria?
1 Global air travel for commerce and tourism has increased.
2 The mosquito vector rapidly evolves resistance to insecticides.
3 The Plasmodium pathogen shows great antigenic variability.
4 Civil unrest and poverty result in overcrowded living conditions.
1 )
1, 2 and 3
2 )
1, 2 and 4
2 and 3 only
4 )
3 only
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...