矿山施工调度工作的主要内容是()。

A.督促检查施工准备工作 

B.检查和调节劳动力和物资供应工作 

C.检查和调节地面和地下工作面及空间管理 

D.检查和处理总包与分包的协作配合关系 

E.定期组织安全大检查

根据下面所提供的对话情景，在每个空白处填入一个适当的句子，使其意思连贯、完整。

    Jim and Bob are good friends.They are going home after school.

    J: Jim   B: Bob

J: Hi, Bob. Let's go home.

B: OK.

J: Summer holiday is coming.1________.

B: I'm going to Beijing with my parents.

J: Why! You went there with your father last winter holiday.

B: 2________.

J: Really? How exciting! I wish I could go to see the Olympic Games, too.

B: Yeah. I feel I'm very lucky.

J: By the way, 3________.

B: By train.

J: 4________.

B: About two weeks.

J: 5________.

B: Thank you.