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Not long ago, many people believed that babies only wanted food and to be kept warm and dry. Some people thought babies were not able to learn things until they were five or six months old.

Yet doctors in the United States say babies begin learning on their first day of life. The Eunice Kennedy Shriver National Institute of Child Health and Human Development is a federal government agency. Its goal is to determine which experiences can influence healthy development in people.

Researchers at the institute note that babies are strongly influenced by their environment. They say a baby will smile if her mother does something the baby likes. A baby learns to get the best care possible by smiling to please her mother or other caregiver. This is how babies learn to connect and communicate with other people.

The researchers say this ability to learn exists in a baby even before birth. They say newborn babies can recognize and understand sounds they heard while they were still developing inside their mothers.

Another study has suggested that low birth weight babies with no evidence of disability may be more likely than other children to have physical and mental problems.

American researchers studied almost five hundred boys and girls. They were born in, or admitted to, one of three hospitals in New Jersey between 1984 and 1987. At birth, each child weighed fewer than two thousand grams.

The boys and girls had an average age of sixteen at the time of the study. They were asked to complete intelligence and motor skill tests in their homes. Their test results were compared with those of other children their age.

小题1:According to the passage, some people used to think that babies began to learn _________.

A．on their first day of life

B．even before they were born

C．before five or six months old

D．at or after five or six months old小题2:Babies learn to connect and communicate with other people through_____________.

A．smiles

B．cries

C．facial expressions

D．body language小题3:The Eunice Kennedy Shriver National Institute of Child Health and Human Development tries to find out ________.

A．what affects people’s healthy development

B．what influences babies’ learning ability

C．how to cure some children’s health problems

D．how to develop children’s learning ability小题4:What will be mentioned in the following passage?

A．The evaluation method of the tests.

B．The cause of low birth weight babies.

C．The result of the intelligence and motor skill tests.

D．The evidence proving babies began to learn before birth.

评审员在检查实验室的用户申诉和投诉记录时发现有一条意见：“实验室的技术负责人经常不在家，检测报告中的问题总是得不到及时解决。”技术负责人如是说：“这是没法解决的问题，因为我确实需要经常出差。”是否符合资质认定评审准则要求？为什么？

改道是将（）调整到规定标准的作业。

A、轨距

B、轨向

C、高低

D、轨道

摇表应使用仪表专用测量线，或选用绝缘强度较高的两根单芯多股软线，不应选用绞型绝缘软线或平行线。( )