一个初二期末英语考的问题

题目

一个初二期末英语考的问题
Electricity heats food in ovens __________ cools it in regrigerators.
A.or B.and C.so D.but
Which one should I choose?Why?Thanks a lot.
前面还有:Today almost everyone uses electricity in one way or ________.(A.other B.others C.another D.else) Electricity lights the streets and buildings,and warms people and animals.It heats food in ovens ______ cool it in refrigerators.
但是书上写的是OR啊
Why can't I choose

答案

可以很确定地告诉你,答案是：B
电既能让烤箱给我们热食品,又能让冰箱给我们冷冻食品.
是并列关系.
是说电的能力的.
相信我!没错的!：）