保持投资组合中各类资产的恒定比例，在资产相对价值变化后，进行再平衡。这种策略称为(

Mr. Clark worked in a newspaper, and he did a lot of important and difficult work, but then he began to forget things, and this made his work very difficult. One day he said to himself, “I’m going to go and see Dr. Martin about this.”

He waited in the doctor’s waiting room with the other patients, and then the nurse said to him, “You can go in and see Dr. Martin now”.

“Oh, doctor,” said Mr. Clark, ‘it’s terrible, I can’t remember anything for longer than half a minute, and it’s making my work very difficult. What can I do? Can you help me?”

The doctor said, “When did this start, Mr. Clark?”

“When did what start?” Mr. Clark said.

小题1:_______ made Mr. Clark work very difficult.  

A．Important work

B．Working for a long time

C．Forgetting things

D．Bad condition小题2:_______ go to see Dr. Martin.

A．Mr. Clark himself decided to

B．Mr. Clark’s friend advised him to

C．The nurse asked Mr. Clark to

D．The other patient told Mr. Clark to小题3:A patient is _______ .

A．a person who will die soon

B．a person who is ill

C．a doctor’ s helper

D．a doctor’s friend小题4:Why did Mr. Clark ask Dr. Martin, “When did what start”?Because he forgot__________.

A．the time

B．his illness

C．the doctor

D．the hospital小题5:Which statement is TURE?

A．Mr. Clark didn’t know Mr. Martin before.

B．Mr. Clark should not see the doctor.

C．Mr. Clark could remember things as well as before.

D．Mr. Clark’s illness was serious.

维生素B12的主要吸收部位是

A．加强胃肠运动和消化腺分泌
B．抑制胃肠运动和消化腺分泌
C．加强胃肠运动，抑制消化腺分泌
D．加强消化腺分泌，抑制胃肠运动
E．不影响胃肠运动和消化腺分泌

组织研制成功世界第一个远程计算机网络的国家是指（）。

广西推进的“双核驱动”战略，是要打造（）这两大核心增长极。

A、北部湾经济区

B、左右江革命老区

C、西江经济带

D、资源富集区

虞世南等人所编《北堂书抄》、《文思博要》和《艺文类聚》等类书，成为（）的作诗工具。