i guess you are in nursing program right? , Y- M, ~# ]- ^! [do not use translator. some of them do not make sense.+ X5 j& W( T) V7 d. f: U3 z
try to use english "answer" website. it might help1 m. q* I2 [- _2 `* p
i have one but i never use it. well, leave me messages on "duan xiao xi'