4.0706706…用循环小数简便写法记作( )
在寒冷时,肾上腺素有增加产热的作用.能与肾上腺素在调节血糖和体温方面分别发生协同作用的激素是( )
①胰岛素 ②胰高血糖素 ③甲状腺激素 ④抗利尿激素
Sarah: Mum, where is my skirt?
Mum: Is it on your bed,
Sarah: No, it isn't.It's orange.It's your dress.
Mum: Is it red?
Sarah: Yes, it is.
Mum: Is it on the chair?
Sarah: Yes.Thanks.Mum.
下列关于氮气的说法错误的是()