A:电极A上发生的反应为:2S22- - 2e-=== S42-
B:K+从右到左通过离子交换膜
C:电极X上发生的反应为:2Cl-- 2e-===Cl2↑
D:当有0.1 mol K+通过离子交换膜,Y电极上产生2.24 L气体(标准状况)
①优良港口多 ②岛内矿产资源丰富 ③吸收外国资本 ④岛内市场广阔
下列对于调控城市空间形态发展的认识,不正确的是( )
从右栏中选择与左栏对应的答语。
①How old is Wang Liang?____ A. It's a map.
②Are those your friends?____ B. They are rulers.
③What's that in English?____ C. I'm in Class Five.
④What are those?____ D. No, they aren't.
⑤What class are you in?____ E. He is nineteen.
—The children in rural areas have few books to read. Let's ______ some books to them.—Great, it is a good idea.
青少年正处在身体发育时期,一定要注意营养均衡,不可挑食偏食.下列营养物质中不能产生人体所需能量的是( )