最近，有消息说有些无良商贩将老鼠肉经腌制、油炸等处理后充当烤乳鸽出售、欺骗消费者的事。处理后的老鼠肉和乳鸽肉从视觉上不易区分，原因之一是两种动物都属于（     ）

一组数据－3，－5，9，12，6，0的极差是____ .

Dear Lily,

    How are you doing these days? I know your holiday is 1 week. You can come to Shanghai. Shanghai is very 2 and I always need (需要) a map here. Do you like 3 food? I can take you to 4 some great food. The 5 here are very good too. And you can 6 some good clothes. Do you know Disneyland (迪斯尼乐园)? I 7 it. It is a special world and it is 8 Let's go there. We can have great fun (乐趣) there. Oh, you don't need to take 9 clothes. You can come to my home to stay with me 10 wear my clothes.

    Yours,

    Daisy

四面八方都是南方，此人应站在什么地方（　　）

两个因数都是9，积是____ 。