i guess you are in nursing program right? ' s$ f+ Y/ N! z! b" w/ F I! rdo not use translator. some of them do not make sense.4 S% A! D; z+ }2 r0 Q
try to use english "answer" website. it might help ! z% M* a V& q$ N9 C* Q" }i have one but i never use it. well, leave me messages on "duan xiao xi'