i guess you are in nursing program right?, n4 a2 I8 n/ L
do not use translator. some of them do not make sense.! ^' V- @6 j( [3 k; ^ {" o7 @! U
try to use english "answer" website. it might help 7 T& K3 P5 _" L, c; Di have one but i never use it. well, leave me messages on "duan xiao xi'