[多项选择]关注自闭症儿童的某志愿者协会目前有登记在册的志愿者70名，有2名专职社会工作者担任志愿者领导。为了提高其服务质量，督导需对志愿者进行培训的内容有（ ）
A. 自闭症儿童的身心发展特点
B. 志愿服务的意义和价值
C. 与自闭症儿童建立关系的技巧
D. 志愿者表彰的意义和办法
E. 志愿服务表现评估标准

Autism (儿童自闭症) is a serious mental illness, especially of children,
in which one becomes unable to communicate or form relationships
with others. There has been alarming rise in autism rates in the U. S. and 62. ______
some other developed nations recently, which have come one of the most 63. ______
anguishing mystery of modern medicine, and the source of much desperate speculation 64. ______
by parents. In 1970, the incidence of autism was thought to be just 1 in
2,500; today about 1 in 170 kids born in the U, S. is down by autism. 65. ______
According to a recent study performed by Cornell University, autism can be
caused by watching too much television at a tender year. "Approximate 17% of 66. ______
the growth in autism in California and Pennsylvania during the 1970s and 1980s
was due to the growth of cable television". This is further supported by the