Liu Tao:Hi,Mike.Nice to meet you.

Mike:Nice to meet you,too.

Liu Tao:What date is it today?

Mike:It's May 15.What subject do you have in this morning?

Liu Tao:We have math,Chinese,art and PE.

Mike:Oh,I like PE very much.What's your favourite subject?

Liu Tao:My favourite subject is English.But we don't have English today.

Mike:What a pity! Do you like PE?

Liu Tao:No,I don't.

Mike:It's time for class.Let's go.

下图为中美洲部分区域图，读图回答下列问题。

以下关于对动物类群的认识不准确的是（　　）

定义在R上的奇函数$f\left(x\right)$满足：当$x>0$时，$f\left(x\right)={2013}^x+{\log }_{2013}x$，则方程$f\left(x\right)=0$的实数根的个数是（   ）

在“苹果”产品的背后，印有这样一行英文——“Designed by Apple in California Assembled in China”。翻译过来就是“加利福尼亚苹果公司设计，中国组装”。“苹果背后那行字，应刻在每个中国人心里”。这警示我国必须