i guess you are in nursing program right? 0 z2 o( @) J) k% D0 xdo not use translator. some of them do not make sense.; u. G0 r+ b2 ^
try to use english "answer" website. it might help 9 f3 l' L: G* x+ X vi have one but i never use it. well, leave me messages on "duan xiao xi'