健康教育的核心是（）。
A.行为研究
B.行为诊断
C.行为比较
D.行为改变
E.行为分析
参考答案：D
___ staying at hotels in Red River Village, tourists can help the villagers make money so that they
can take _____the river and the birds.
[ ]
A. By; care for
B. By; care of
C. Through; care about
D. With; care of
电器线路火灾的主要原因？
