著作权的许可使用合同有效期不得超过（）年。 A.5 B.10 C.15 D.20

       This is an English boy(男孩). His name is Jim. He is twelve. He is in my school. We are in the same

grade. I'm in Class Three, Grade Seven, but he is in Class Four. I'm his good friend. He is my good friend, too.

根据短文内容，补全对话。

A: Excuse me, what's his name?

B: His name is Jim.

A:    1     

B: J-I-M, Jim.

A: Where is he from?

B:    2 

A: How old is he?

B:    3   

A: Is he in your school?

B:    4   

A: Is he in Class Three, Grade Seven?

B:    5    He is in Class Four, but we are good friends.

A: Thank you.

B: That's OK.

动用保障基金对期货投资者的保证金损失进行补偿后，（）依法取得相应的受偿权，可以依法参与期货公司清算。

A.中国证监会

B.财政部

C.期货投资者保障基金管理机构

D.期货投资者

隐性感染后获得的免疫属于（）

A.过继免疫疗法

B.自然被动免疫

C.自然主动免疫

D.人工被动免疫

E.人工主动免疫

企业战略从基层单位自下而上地产生，并加以推进和实施。这是战略实施的（）模式

A．指挥型 

B．转化型 

C．合作型 

D．增长型

简述观光农业人文资源的含义。