对于分级绝缘的变压器,中性点不接地或经放电间隙接地时,应装设()。

题型:填空题

问题:

对于分级绝缘的变压器,中性点不接地或经放电间隙接地时,应装设()。

考点:电厂电气专业继电保护技能鉴定考试电厂电气继电保护初级电厂电气继电保护初级题库
题型:填空题

在一项有关某病50名病例和50名对照的研究中,关于某一可能的病因因素所发现的差异并无统计学显著性,由此可得出结论()。

A.该差异可能是由抽样误差造成的

B.该差异临床上可能有显著性

C.该因素和疾病无联系

D.证明病例组和对照组有可比性

E.观察和访视偏倚已被消除

题型:填空题

女性,31岁,慢性心房颤动,病人应用洋地黄过程中,心室率突然转为绝对规则,每分钟52次

最有效地治疗措施是()

A.利多卡因

B.阿托品

C.苯妥英钠

D.美托洛尔

E.呋塞米

题型:填空题

以下______不是分组密码的优点。

A.良好的扩散性

B.对插入的敏感程度高

C.不需要密钥同步

D.加密速度快

题型:填空题

Our particular parenting style reflects our own way of “looking”. Here’s a great piece of writing reflecting parent’s particular ways on the parenting style that have become known humorously as helicopter parenting and submarine parenting.

Helicopter parents hover over their children, managing every aspect of their child’s life. On the contrary, submarine parents remain “hidden” coming to the surface when guidance is needed.

While helicopter parents may have the best intentions, in reality, they are raising children with few problem solving skills. Children with hovering parents never get the chance to face disappointment and build up their ability to recover from misfortune.

Think about your typical submarine. Submarines usually remain underwater. In case of a need for emergency surfacing, submarines can rise so quickly. They are driven partially out of the water. Submarine parents also remain out of sight, yet able to appear in the case of an emergency.

I admit I’m a submarine mom. My job as a parent is to have fun with my daughters while letting them explore and learn natural consequences.

My older daughter found herself acting in commercials and making more than minimum wage as a teen. To give her a sense of the real world, I insisted she spend three weeks every summer, picking strawberries and earning $3.50 on a good day.

When my youngest daughter Sondra was six, she wanted a very expensive American Girl Doll. I cut the full color 18" picture out of the American Girl catalogue and had it laminated (压膜). “Here’s your American Girl Doll.” I said “When you turn nine, I’ll buy you the 3D doll on your birthday.” Sondra played with her flat doll for months, making clothes and furniture for her. She learned creativity. I saved $88.00.

小题1:What is the text mainly about?

A.Various means of transportation.

B.Funny experiences of a mom.

C.Humorous stories about parents.

D.Different styles of parenting.小题2:The underlined phrase “hover over” in Paragraph 2 is closest in meaning to “_____”.

A.leave behind

B.fly around

C.watch over

D.set aside小题3:Which of the following can be learned about helicopter parents from the passage?

A.They give their children proper guidance.

B.They try to do everything for their children.

C.They teach their children how to face failures.

D.They help their children explore by themselves.小题4:The author supports her point of view mainly by _____.

A.stating facts and offering advice

B.using figures and giving evidence

C.analyzing data and drawing conclusions

D.making comparisons and giving examples

题型:填空题

下列答案哪一项不是反映医疗需要量的指标()

A.两周每千人患病人数

B.两周每千人患病日数

C.两周每千人因病伤卧床人数

D.两周每千人就诊次数

E.每人每年休工日数

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