i have some science questions.if u know english and science ,just come and help me
What is heart attack caused by
what system or oragans does heart attack affect?
Give a short description of what heart attack is?
what are the symptoms or problems that someone can exhibit when they have heart attack?
can heart attack be cured or treated in any way?What is the treatment?
不是翻译..是用英文回答这些问题