漏电保护从保护方式分()几种。A、漏电保护B、漏电闭锁C、附加直流电源D、选择性漏电

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问题:

漏电保护从保护方式分()几种。

A、漏电保护

B、漏电闭锁

C、附加直流电源

D、选择性漏电保护

考点:综采维修电工综采维修电工(技师)综采维修电工(技师)题库
题型:多项选择题

在0.45、0.54、0.405、0.504四个数中,最大的数是(  ),最小的数是(  )。

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关于核酸的生物合成的叙述,错误的是[ ]

A.DNA分子的复制需要解旋酶、DNA酶

B.RNA分子可以作为DNA合成的模板

C.真核生物的大部分核酸在细胞核中合成

D.DNA分子的复制方式是半保留复制

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在水利水电工程中,变形观测的基点,应尽量利用施工控制网中较为稳固可靠的控制点,也可建立独立的、相对的控制点,其精度应不低于()等网的标准。

A.一

B.二

C.三

D.四

题型:多项选择题

Friends are important to children.Research shows that children who have no friends can suffer from difficulties later in life.Friendship provides children with more than just fun.In making friends,children learn how to get in touch with others and solve problems.Having friends even does good to children for they can help each other during class.

If the parents are concerned about whether their children make many friends,what matters is that the child is comfortable and happy with his friends.Parents need to understand the steps children take in building friendships.First of all,be a friend to your child.Good friendships start at home.Children begin to develop the necessary ability to go out and meet others through getting along with their parents. Greet the child warmly and let him know you are glad to see him.Children learn a lot from how their parents stay with them and other people.

Teach children how to solve conflicts(争端).Being able to work out conflicts is an important skill in getting along with others.If parents know the children have a conflict,let them work it out on their own.Only step in if it is really necessary,for example,an argument is getting physical.

Give children chances to practice staying together.Have children play games that require cooperation. For example,races are fun and provide plenty of practice in teamwork.“In what ways didn’t you work well together? What might you do differently next time?” For these ideas,see books such as Games Book by Telly Orlick and Team—Building by Alanna Jones.

Encourage children to show thanks to others.The parents can encourage children to do this by setting the example for them.

56.According to the article,if one child has no friend,he will________.

A.have some trouble in the future           B.worry about everything in the future

C. not know the importance of making friends   D.not find anybody to help him

57.Friendship can be helpful to the children EXCEPT_________.

A.providing a lot of fun      B.getting in touch with others

C. solving the problems        D.helping to cheat in the exams

58.When the children disagree with each other,the parents should_______.

A.1et them fight with each other until they find who is the winner

B.do nothing to the children and believe in their abilities

C.1et them work it out by themselves and help if necessary

D. talk with them and try to find good ways to stay together

59.From the text.we can know a good friend should know how to________.

A.fall in love with each other      B.show thanks to others

C. exchange their presents          D.ignore their differences

题型:多项选择题

交通部老旧运输船舶管理规定中关于液货船的范畴不包括下列哪种船舶?()

A.油船

B.供应船

C.液化气船

D.化学品船

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