划分东、西半球的经线是（      ）

根据短文内容，完成下面的句子，每空一词。
    Do you like coke? Do you know we can cook chicken with it? And does it have anything to do with our mobile phones? The latest cell phone, the "Coke Phone”, by the Chinese designer Daizi Zheng is a surprise.
    Daizi Zheng is a famous designer in England. The Nokia company asked her to design a phone that is not bad for the environment. As a result of her research, she found that normal phone batteries are expensive and bad for the environment. It also uses many good resources（资源）to make a normal battery. So she wanted to design a battery that is green. Then a Nokia cellphone that drinks coke was born.
    The cell phone has a bio-battery（生物电池）.It gets power from sugar. So users only need to pour a glass of coke into it, and then watch the coke turn into power. Once the battery dies, only oxygen and water are left. Bio-batteries can last three to four times longer than the usual batteries. In fact, Zheng said that not only coke but also soda（苏打）with sugar can be good resources to power the cell phone.If so, you may never look at a can of coke in the same way again.

记忆y与ie拼写口诀。

小i胆子小，见到声母y就跑。____ ____ ____。