下列属于生产者和消费者关系的是( )
A:兔子吃草
B:松鼠吃蘑菇
C:蛇捕食青蛙
D:青蛙捕食昆虫
One of the most effective ways to reduce is to talk about feeling with someone you trust.
已知数据32,18,21,69,10,5,x的中位数为21,则下列数据中,x可以取( )