A:放电时储氢合金作正极
B:放电时负极反应为:LaNi5H6-6e-=LaNi5+6H+
C:充电时阳极周围c (OH-)减小
D:充电时储氢合金作负极
函数y=2xx-3的自变量x的取值范围是____
B
One day, Mr. and Mrs. White went shopping by car. They stopped their car near a shop. They bought many things and they wanted to put the things into the car. But Mr. White couldn't open the car. A policeman came to help. Then a man came up and shouted(喊),“What are you doing? This is my car. ” Mr. and Mrs. White looked at the car's number. It wasn't their car.
如图为某同学在观察自己制作的洋葱鳞片叶表皮细胞临时装片过程中,显微镜下看到的几个视野,请据图回答问题:
我国面积最大的盆地是: