Hello, my name is Betty and I'm in Class Six. I'm twelve years old. I'm American. I'm from New York. Mike is in my class and he is my good friend.

    Hi, I'm Mike. I'm from London. I'm in Class Six, too. Wang Tao is my friend. He is in my class.

    Hi, my name is Wang Tao. I'm Chinese. I'm from Hangzhou. I'm in Class Six with Betty and Mike. They are my good friends.

地图的三要素被称为地图的“语言”，下列哪一项是（　　）

把5欧的电阻R₁和l0欧的电阻R₂串联在4.5伏的电源上，测得Rl两端的电压为１.5伏。求：

文化是一个地方的根与魂。文化蕴藏在城乡的每个角落，滋养着每个人的心灵，让我们一起来感受温州的历史文化。