关于ESO，说法正确的有（）。 A.股票可以免费得到 B.是一种可确定的预期收入 C

作为固定桥的基牙必须是 （）

A.活髓牙

B.牙周组织健康

C.牙体组织健康，无缺损

D.基牙排列正常无倾斜

E.基牙不能咬合过紧

阅读理解。

     "Mum, what does it mean when someone tells you that they have a skeleton (骨骼) in

the closet (衣橱)?"Jessica asked."A skeleton in the closet?" her mother paused thoughtfully.

"Well, it's something that you would rather not have anyone else know about.For example,

if in the past, someone in Dad's family had been arrested for stealing a horse, it would be'a

skeleton in his family's closet'.He really wouldn't want any neighbor to know about it."

     "Why pick on my family?" Jessica's father said with anger."Your family history isn't so

good, you know.Wasn't your greatgreatgrandfather a prisoner who was transported to

Australia for his crimes?""Yes, but people these days say that you are not a real Australian

unless your ancestors arrived as prisoners.""Gosh, sorry I asked.I think I understand now."

Jessica cut in before things grew worse.

     After dinner, the house was very quiet.Jessica's parents were still quite angry with

each other.Her mother was ironing clothes and every now and then she glared at her

husband, who hid behind his newspaper pretending to read.When she finished, she

gathered the freshly pressed clothes in her arms and walked to Jessica's closet.Just as

she opened the door and reached in to hang a skirt, a bony arm stuck out from the

dark depths and a bundle of white bones fell to the floor.Jessica's mother sank into a

faint (晕倒), waking only when Jessica put a cold, wet cloth on her forehead.She

looked up to see the worried faces of her husband and daughter.

     "What happened? Where am I?" she asked."You just destroyed the school's skeleton,

Mum." explained Jessica."I brought it home to help me with my health project.I meant

to tell you, but it seemed that as soon as I mentioned skeletons and closets, it caused a

problem between you and Dad." Jessica looked in amazement as her parents began to

laugh madly."They're both crazy." she thought.

1．According to Jessica's mother, "a skeleton in the closet" means________.

A．a family honour

B．a family secret

C．a family story

D．a family treasure

2．What can we learn about some Australians' ancestors from Paragraph 2?

A．They were brought to Australia as prisoners.

B．They were the earliest people living in Australia.

C．They were involved in some crimes in Australia.

D．They were not regarded as criminals in their days.

3．Jessica's mother fell down into a faint because she was____.

A．knocked

B．frightened

C．injured

D．surprised

4．Why did Jessica bring a skeleton home?

A．She was curious about it.

B．She planned to keep it for fun.

C．She needed it for her school task.

D．She intended to scare her parents.

目前台湾省的居民中，汉族约占97% ，他们主要是明清以来福建、广东两省移民的后代，大部分人还保留着乡 音。说明了台湾与大陆的[ ]

A．地缘关系

B．文化渊源

C．历史渊源

D．血缘关系

简述石灰石中MgO的危害。

20座客车的收费标准按（）计算。

A.0.8元车/公里

B.1.2元车/公里

C.1.15元车/公里

D.1.5元车/公里