题干
Can you write a report______ wild animals______ danger for the newspaper?
A：about; on
B：on; in
C：to; from
D：in; of
答案(点此获取答案解析）
B
Can you write a report______ wild animals______ danger for the newspaper?
A：about; on
B：on; in
C：to; from
D：in; of
,若f(a)>f(-a),则实数a的取值范围是