不是传染病的基本特点的是() A.流行性 B.地方性 C.季节性 D.传染性 E.潜

题型:单项选择题 A1/A2型题

问题:

不是传染病的基本特点的是()

A.流行性

B.地方性

C.季节性

D.传染性

E.潜伏性

考点:儿科护理主管护师综合练习题综合练习题题库
题型:单项选择题 A1/A2型题

一人用斜向下的力推小车前进,力的大小为40 N,方向与水平方向成14°角,则下面画出的推小车的力的图示,如图所示,正确的是 [ ]

A、

B、

C、

D、

题型:单项选择题 A1/A2型题

试述解放战争时期人民民主 * * 的司法制度的发展。

题型:单项选择题 A1/A2型题

阅读理解。

     Jeremy Wirick, 9, has been back in school for less than two months, but he has already had several

asthm a(哮喘)attacks. A recent attack happened on October 2, after he pushed himself too hard in physica

l exercise. Running, power walking, jogging and push-ups took their toll. When Jeremy got home an hour

or two later, he was out of breath. He needed to use a nebulizer (喷雾器), a machine that helps send

medicine quickly to the lungs, to get his breathing back to normal.

      Asthma attacks like Jeremy increase in September and October. More than six times as many asthma

sufferers who are primary-school age need hospital treatment in the fall as in the summer.

     Experts believe many factors can cause back-to-school asthma. Kids get together in close spaces, they

start passing viruses around. A viral infection (感染) can cause an asthma attack. There are also certain fall

allergies (过敏症) that can cause attacks. Exercise is another common cause of an attack. Besides, the stress

of school can make asthma worse.

     Parents can play a big role in helping kids with asthma start the school year right. Dawne Gee's

10-year-old son, Alexander, has had asthma since he was a baby. Before the school year starts, she tells

school workers in writing about her son's asthma.

     The Gees live in Kentucky, which has passed laws allowing students to carry their asthma medication

(药物治疗)with them at school. Alexander's mom makes sure he has his inhaler (人工呼吸器) with him

when he goes to school and that he keeps it on hand at all times. In Delaware, where Jeremy lives, kids are

allowed to carry their inhalers at school.

     The American Lung Association says that about 6.2 million American children suffer from asthma.

Asthma is the chronic (慢性) illness that causes students to miss the most days of school. There are many

things that schools can do to help students control their asthma

1. The passage mainly deals with _______.

A. how to prevent and treat Asthma

B. what Asthma is and its medication

C. the side-effects Asthma has on kids

D. the causes of Asthma and how to control it at school

2. By saying"Running, power walking, jogging and push-ups took their toll.", the writer means that_____.

A. physical exercise affected their health

B. physical exercise gave them a deep thought

C. asthma attacks made them like physical exercise

D. asthma attacks could be cured through physical exercise

3. Which of the following statements is NOT supported by the passage?

A. Kids are likely to suffer asthma attacks in the fall

B. Stress can add to the risk of asthma attacks

C. Medication can cure asthma quickly

D. Asthma attacks will need necessary medical treatment

4. The passage lists many factors that cause asthma attacks except_____.

A. A viral infection

B. unhealthy habits

C. certain fall allergies

D. physical exercise

5. The following paragraph is probably going to talk about______.

A. tips on asthma for schools

B. a survey on students with asthma

C. the effects asthma has on students

D. further understanding of Asthma

题型:单项选择题 A1/A2型题

下列哪些因素不会影响无泵型采样器的采样效率()。

A.气体污染物浓度

B.采样器的扩撒路径

C.温度

D.风速

E.相对湿度

题型:单项选择题 A1/A2型题

多轴飞行器动力系统主要使用()

A.无刷电机

B.有刷电机

C.四冲程发动机

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