对话填词。

A: What's this?

B: It's a photo 1_______ my sister.

A: You have a nice sister.

B: Thanks.

A: Where 2_______ your sister work?

B: She 3_______ at a hospital.

A: What 4_______ she do?

B: She is a doctor. What 5_______ your sister?

A: She is a doctor, 6_______.

B: Does she like the job?

A: No. she 7_______ it's difficult.

B: What does she want to 8_______?

A: Sorry, I don't know.

下列工作内容中( )项不属于城市分区规划中燃气工程规划的内容。

A．选择城市气源种类

B．确定燃气输配设施的分布、容量和用地

C．确定燃气输配管网的级配等级，布置输配干线管网

D．确定燃气输配设施的保护要求