问答题简答题：怎么理解上下行覆盖不平衡？通常解决方法有？

题型：阅读理解

Read and answer. (根据题目要求完成下面的练习)

Dear friend,

How are you? I'm fine. I will tell you something about my holiday. I went to Jilin with my family.

I went skiing and went ice-skating on Monday. It was very cold. On the second day, we went

shopping and bought many presents. On Wednesday, we climbed mountains and took many pictures.

Then, we ate good food in a restaurant. We went home by train on Friday. I was very happy this

holiday. What about you？Write to me soon.

Best wishes ,

Jack

Part A Read and number. (根据短文内容，给下面的图片按信的内容所述顺序标号)

( ) ( ) ( ) ( ) ( )

Part B Read and tick. (根据短文，判断对“T”错“F”)

( )1. Jack went to Harbin with his family.

( )2. They went shopping and bought presents on Tuesday.

( )3. Jack took pictures on Wednesday.

( )4. Jack ate good food in his friend's home.

( )5. Jack had a good time.

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题型：阅读理解

阅读理解。

This morning, a boy of twelve saw a small fire at one end of a ship. Tom left home very

early, against the wishes of his father, to see the ships at the port. It was a good thing that

he did, because there was nobody else around, and the small fire grew dangerously big very

soon.

Tom stood near the ship and shouted at the top of his voice. He woke up the port workers

living nearby. The ship was one of the six big ships in port at the time and they were all carrying

oil (石油) and paper. The fire burned hundreds of boxes of paper, so it spread very quickly.

The end of the ship was black with smoke, but thanks to Tom, the fire didn't reach the oil.

Tom was also lucky, because his father was pleased rather than angry with him.

1. When Tom saw the fire, he was _____. [ ]

A. at home

B. at the port

C. on the ship

D. on another ship

2. It was a small fire _____. [ ]

A. but it grew big very quickly

B. and luckily it stayed small

C. but it grew big very slowly

D. and it was not dangerous

3. As soon as the boy saw the fire, _____. [ ]

A. he knocked on the doors of nearby houses

B. he ran back home to tell his father

C. he shouted to wake up the workers nearby

D. didn't do anything at all

4. The ship was carrying _____. [ ]

A. paper and wood

B. oil and paper

C. wood but not oil

D. oil but not paper

5. The fire _____. [ ]

A. burned boxes of paper at first

B. burned oil at last

C. burned the boy

D. burned the whole ship

6. In this story the underlined word "against" means _____ in Chinese. [ ]

A. 顺从

B. 按照

C. 违背

D. 防备

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题型：多项选择题

写字楼物业管理区域内日常车辆管理的主要任务是（）

A．建设停车场

B．车辆的引导

C．车库的规划

D．停位调度

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题型：判断题

变异指标中，标准差是指分布数列中最大标志值与最小标志值之差，反映现象的实际变动范围。( )

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题型：多项选择题

在下列两个案例中各有5个问题，请在各问题答案的选项中选出一个或一个以上正确答案。

大连XX国际物流有限公司(2102980XXX，A类管理企业)受大连新世纪进出口有限公司(2102250XXX，A类管理企业)的委托，凭“C”字头备案号的登记手册向大连机场海关申报进口已鞣未缝制蓝狐皮1000张及辅料一批，以履行蓝狐皮大衣的出口合同。货物进口后，交由大连伟达服饰有限公司(2102930XXX，B类管理企业)加工。合同执行期间，因加工企业生产规模有限，经与境外订货商协商后更改出后合同，故蓝狐皮耗用数量减为600张。经批准，剩余的400张蓝狐皮中的300张结转至另一加工贸易合同项下；100张售予沈阳华亿服装有限公司(2101940XXX，C类管理企业)用以生产内销产品。
根据上述案例，回答下列问题。

300张蓝狐皮结转至另一加工贸易合同项下，必须符合( )规定。

A．必须由同一经营单位经营

B．必须是同一贸易方式

C．必须由同一加工企业加工

D．必须生产同一产品

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怎么理解上下行覆盖不平衡？通常解决方法有？

题目：

答案：