A：氧化银为正极，被还原
B：银为负极，被氧化
C：Zn为负极，被还原
D：该装置中的电解质为酸性物质
在观察临时装片时，如在视野中看到中央发亮、周边黑暗的圆圈，该圆圈可能是（ ）
sea, good, home, about, moon, many, doctor, leave, help, go
In the future，life will be much ____. Maybe there will be vision phones in every ____. People can have a medical examination without a ____ or nurse in the room and do some shopping without ____their homes. And what ____education? There will be ____educational programs on the radio or TV. So many children who live in far-away villages don't need to ____to school every day. They can study at home. Each family has a robot. Robots will ____ people do their housework. Perhaps some people will fly to the ____for a holiday and some people can live under the ____.
自从学习了《区域的变化》之后，小洪开始了他自己的探究——交通工具的变化发展历史。小洪可以通过哪些方式或途径去搜集相关资料？
看拼音，写汉字
qī zi bǎng zhù lǐ cǎi
____ ____ ____
cháng wèi tāng yào biǎn què
