Which of the following is true of puberty in girls?

A、Menstruationcanoccuranytimefromtheagesof7-14yrs
B、Mostgirlshavetheirgrowthspurtintheyearprecedingtheonsetofthemenstruation
C、Scoliosisissidewayscurvatureofthespineandalwaysoccursafterthepeakheightvelocity
D、 Mostgirlsstophavingbonegrowthwithin4-5yearsaftertheonsetofmenses
E、 Oncemenstruationoccursgirlswillhaveapredictablemenstrualcycleinthefirst1-2years