i guess you are in nursing program right?& i; Q# y5 a& x4 n( h
do not use translator. some of them do not make sense. " N. M3 Q$ x2 B& i$ ^' ]8 ~try to use english "answer" website. it might help 9 R8 z3 _; `* ~4 C! t( X: Pi have one but i never use it. well, leave me messages on "duan xiao xi'