一台“220V  60W“的电风扇、一盏“36V  60W“的白炽灯和一只“110V  60W“的电热器各自在额定电压下工作，比较它们相同通电时间内产生的热量是（　　）

选字组词。

糊    湖

____水  ____涂  ____墙

下列关于名著的表述，不正确的一项是（   ）

根据材料内容选择最佳答案。

    One day,Eddy,the frog(青蛙)，meets his two friends：Tom，the squirrel(松鼠)，and Mary,the bird．

    "Eddy,can you climb trees?"asks Tom．

    "No，I can't，"says Eddy．Tom laughs(笑)and climbs up into a tree．

    "Eddy,can you sing?"asks Mary．

    "No，I can't，''says Eddy．Mary laughs and sings a beautiful song．

    "Look．"Eddy says．"I can swim．"He jumps into the water and swims．

    "That's nothing．"say Tom and Mary．

    Eddy is sad and he goes away．He meets a monkey and he learns to juggle(玩杂耍)from him．Then Eddy goes back to his friends and juggles for them．But they don't like it．Eddy is sad again．At that time they hear a baby bird crying in the water,"Help!Help!"

    ary and Tom can't swim，So they can't help the baby bird．Eddy jumps into the water and helps the baby bird out．

    "Thank you，Eddy!"says the baby bird．

    "You are great，Eddy,"say Mary and Tom．Eddy is very happy now．

根据材料内容完成下列任务。

写出下列元素的名称或元素符号：