A: Look, it is a picture of my family.

B: Oh, it is a nice picture, Tom. Who is this man?

A: It’s my father.

B: Is the girl your sister?

A: Yes, she is.

B: How old is she?

A: She’s ten.

B: Are you in the same school?

A: No, we are not.

B: Is the woman your mother?

A: Yes, she’s a teacher.

B: She looks young(年轻的).

A: I look like her.

B: Who’s that?

A: Who? The baby(婴儿)?

B: Yes.

A: Guess(猜).

B: Is it your brother?

A: No.

B:I know(知道) it’s you.

A: That’s right. I look lovely(可爱的).

( )71.What photo is it?

A.A photo of a boy.

B.A photo of a family.

C.A photo of a room..

D.A photo of people.

小题1:How old is the sister?

A．7

B．6

C．9

D．10小题2:What is her mother?

A．She is a doctor.

B．She is a teacher.

C．She is a nurse.

D．She is a worker.小题3:Are Tom and his sister in the same school?

A．Yes, he is.

B．No, he is not.

C．Yes, they are.

D．No, they aren’t。小题4:How many people are there in the family?

A．Four

B．Five

C．Three

D．Two

ICMP报文封装在哪一协议数据单元中传送，在网络中起着差错和拥塞控制的作用( )。

A．TCP
B．UDP
C．IP
D．PPP