问题 单项选择题

某大型百货商场进行人力资源需求与供给预测。经过调查分析,得出营业员数量(Y)与商场营业额(X)成线性相关关系(Y=a+bX),其中a=125,b=13.5。预计该商场2012年实现营业额8亿元,2013年实现营业额12亿元。通过统计研究发现,营业额每增加4亿元,需要增加管理人员、营业员、后勤人员共50人,在新增人员中,管理人员、营业员、后勤人员的比例为1:3:1。

根据上述材料,回答下列问题:

 

该企业2012年需要营业员()人。

A.287

B.233

C.225

D.100

答案

参考答案:B

解析:

 2012年实现营业额8亿元,代入Y=125+13.5X=125+13.5×8=233(人)。

阅读理解

阅读理解。

     One day a heavy storm hit a village. Nothing was destroyed, but a rock fell from a nearby mountain.

The rock rolled down from the mountain and stopped in the middle of the main road in the village.

It was very big and shaped more or less like a ball. The village decided to move it since it was

blocking(阻塞)the street. Several of the strongest men in the village came to try to lift it out of

the road. No matter how hard they tried though, they couldn't move it.

     All of this time a young boy was watching the men trying to move the rock. “Excuse me,” he said,

“but I think I could move the rock.”

     “You?”they shouted. "What are you talking about? All of us have just tried, and even together

we can't move it a bit." They all laughed at the boy.

     The next morning some villagers came into the street. To their great surprise, the rock was gone!

More people ran out to see for themselves. It was true the rock wasn't in the road any more.

     The little boy stood in the street, smiling. “I told you I could move it,” he said. “I did it last night.

”Then he walked over to where the rock had been and uncovered some dirt with a shovel(铁锹).

 “You see,”he said, “I dug a deep hole next to the rock, and the rock rolled down into the hole of

itself. Then I covered it with dirt.”

1. The villagers decided to move the rock because______.

A. it was big and heavy.

B. it was completely useless.

C. it was more or less badly shaped.

D. it was in the middle of the road.

2. When the young boy said he could move the rock, the villagers_____.

A. were pleased with him.

B. didn't understand him.

C. didn't believe him.

D. got angry with him.

3. The young boy worked at night so as to______.

A. give the villagers a surprise.

B. work faster and better.

C. dig a hole for himself.

D. find a way to move the rock.

4. The boy removed the rock by______

A. pulling it out of the road.

B. burying it in a hole.

C. breaking it with a shovel.

D. lifting it out of the road.

单项选择题