咳嗽无痰或其量甚少为干性咳嗽,其病因多见于() A.肺脓肿 B.慢性支气管炎 C.大

题型:单项选择题 A1/A2型题

问题:

咳嗽无痰或其量甚少为干性咳嗽,其病因多见于()

A.肺脓肿

B.慢性支气管炎

C.大叶性肺炎

D.急性咽喉炎

E.肺结核空洞

考点:职业病主治医师常见症状与体征常见症状与体征题库
题型:单项选择题 A1/A2型题
已知函数f(x)=(
1
2
x,a,b∈R+,A=f(
a+b
2
),B=f(
ab
),C=f(
2ab
a+b
),则A、B、C的大小关系为(  )
A.A≤B≤CB.A≤C≤BC.B≤C≤AD.C≤B≤A
题型:单项选择题 A1/A2型题

我国交通运输部是全国出入境汽车运输的主管机关,其职责主要有()。

A.审批超越口岸地向内地延伸的旅客、货物运输线路

B.制定统一的出入境汽车运输单证、标志

C.审批口岸交通运输管理站

D.按各级地方政府的授权,负责签订国家政府间汽车运协定

E.拟定国家有关出入境汽车运输政策、法规,制订全国出入境汽车运输发展规划

题型:单项选择题 A1/A2型题

日常生活中,用于保护钢铁制品(如自来水管)所使用的“银粉”实际上是金属___________的粉末;家用热水瓶内胆壁上的金属是___________;温度计内填充的金属为___________;玻璃刀刀头是用___________制成的;灯泡的灯丝是用___________制成的;水龙头表面镀的一般是___________,家用的导线一般是___________制的,一般干电池的负极是用___________制作,正极是用___________制作。

题型:单项选择题 A1/A2型题
.
The Festival of Cultures (August 11 – 14)
City Park
The Festival of Cultures is an annual event to celebrate the wide range of cultures found in our great state. People representing 40 cultural groups will share their traditions and customs. Here are just a few of the festival’s many activities.
Crafts (手工): See the fine art of basket weaving from Vietnam and Zimbabwe. Watch the delicate art of making paper umbrellas from Thailand and the decorative craft of paperl picado, or paper cutting, from Mexico. All craft demonstrations provide a firsthand view of how things are made. You will appreciate the process involved in making these products.
Music and Dance: Experience musical instruments that you have never heard before. Listening to the music of a sho from Japan, a bull-roarer from Australia, a sitar from India, and a chakay from Tailand. You will also be entertained by folk dances from around the world, such as the troika from Russia and the mayim from Israel. From 1:00 P.M. to 3:00 P.M. on August 14, special folk-dancing classes for children will be offered. Children ranging in age from 6 – 8 can learn the kinderpolka from Germany. Children ranging in age from 9 – 12 can learn the raspa from Mexico.
Storytelling: Listen for hours as professional storytellers charm you with interesting tales. Fables, folktales, and ballads from various countries will be told. By popular demand, Gwendolyn Washington, a famous African American storyteller, is back.
Food: Enjoy irresistible foods from other countries, such as gyros from Greece, seafood paella from Spain,
crepes from France, and tandoori chicken from India. These tasty dishes will be difficult to pass up.
Tickets August 11 - 13
Adults            $3
Ages 13 – 18       $2
Ages 6 – 12        $ 1
Ages 6 and under    Free
      
Tickets August 14
Adults            $3
Ages 13 – 18       $2
Ages 12 and under  Free
 
87. Which of the following are from Mexico?
A. The paper cutting and troika.    B. The kinderpolka and sitar.
C. The paperl picado and the raspo.      D. The mayim mayim and the gyros.
88. A family with two children at the age of 8 and 16 are going to the festival on August 12. How much money will they pay for the festival?
A. $5.     B. $6.     C. $8.     D. $9.
89. What do we know about the festival?
A. Children will have a chance to learn different folk-dancing.
B. Storyteller Gwendolyn is invited to the festival for the first time.
C. People will be offered opportunities to play musical instruments.
D. Visitors can make paper umbrellas from their first- hand experience.
90. What’s the purpose of writing this passage?
A. To advertise for the World Marketplace.
B. To introduce a wide range of cultural traditions.
C. To explain the great significance of popularizing the festival.
D. To persuade readers to attend the festival held in the City Park.
题型:单项选择题 A1/A2型题

电熔熔接时,要注意管材与管件之间的配合间隙、不圆度、插入深度、轴向对中与定位,确保组合件在无非()的情况下进行焊接。

A、阻力

B、外力

C、轴向应力

D、应力

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