12-8=____想8加____等于12,12减8等于____
读短文,然后判断正(T)误(F)。
Hi, I'm Yata.I'm a monster. I have a big body. I have a very big head too. My hair is short.I have three big eyes and four small ears. I have two noses. My noses are smalltoo. Look, I have six arms. They are thin and long. I have four long legs. Ican run, but I can't dance.
生活中处处有化学,在实际生活中下列物质的用途与其化学性质无关的是()
下列说法中正确的是( )