Look,this is a photo of my family. This is my grandfather and that is my grandmother.These are my parents,Jack and Mary.They’re teachers.Look at the boy.He is my brother Jim.Who’s this girl?Oh,it’s me.My dog is in the picture,too.

根据短文内容，判断以下句子的正误，你认为正确的句子在题前括号内填“T”，错误的填“F”。

小题1:I’m a girl.

小题2:Jim is my sister.

小题3:I have a dog.

小题4:My parents are teachers.

小题5:My mother’s name is Jack.

高级优质碳素钢，其中硫含量不超过（）。

A.0.03%

B.0.3%

C.0.035%