胸膜粘连最常见的部位是() A.肺尖部胸膜 B.肋膈角处 C.心膈角处 D.纵隔胸膜

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问题:

胸膜粘连最常见的部位是()

A.肺尖部胸膜

B.肋膈角处

C.心膈角处

D.纵隔胸膜

E.以上都不是

考点:北京住院医师医学影像Ⅰ阶段呼吸循环系统呼吸循环系统题库
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A类网络是很大的网络,每个A类网络中可以有()个网络地址。实际使用中必须把A类网络划分为子网,如果指定的子网掩码为255.255.192.0,则该网络被划分为()个子网。

如果指定的子网掩码为255.255.192.0,则该网络被划分为()个子网。

A.128

B.256

C.1024

D.2048

题型:单项选择题

Do you like travelling from one city to ___________?

A.other cities

B.the other

C.others

D.another

题型:单项选择题

煤气厂常在家用煤气中掺入微量难闻的气体乙硫醇(C2H5SH)作为指示剂.乙硫醇可以燃烧,其反应的化学方程式为:2C2H5SH+9O2

 点燃 
.
 
4CO2+2R+6H2O.则R的化学式为(  )

A.SO2

B.SO3

C.S

D.H2S

题型:单项选择题

Many countries such as Iraq, Uganda, Guatemala, and many others have been known to abduct(诱拐)children and force them to serve in the army. The reason is that the enemy isn’t likely to suspect children as a real threat. Many non-government organizations are also known to abduct and force children into being child soldiers. Below we have some quotes from former child soldiers.

“The army was a nightmare. We suffered greatly from the cruel treatment we received. We were often beaten, mostly for no reason at all, just to keep us in a state of terror. I still have a scar on my lip and sharp pains in my stomach from being violently kicked by the older soldiers. The food was not enough, and they made us walk with heavy loads, much too heavy for our small bodies. They forced me to learn how to fight the enemy.”

——Emilio, 14

They gave me pills that made me crazy. When the craziness got in my head, I beat people on their heads and hurt them until they bled. When the craziness got out of my head, I felt guilty. If I remembered the person, I went to them and apologized. If they did not accept my apology, I felt bad.

­­­——Michael, 13

As seen in the quotes, the army is not very friendly toward children. Forced to act like adults, kill like adults, and carry an adult’s load, these children sometimes die from exhaustion(筋疲力尽). Below are some facts about child soldiers.

Today, as many as 300,000 children under the age of 18 serve in government forces or armed rebel groups. Some are as young as eight years old. Children are most likely to become child soldiers if they have no money to buy food and clothes. Many children join armed groups because of economic or social pressure, or because children believe that the group will offer food or safety. Child soldiers are used all over the world. Here is a list of where child soldiers are used.

59.Many countries force children to serve in the army because__________.

A.children are brave and strong

B.the enemy doesn’t consider children as a threat

C.there aren’t enough adults to join the army

D.they think children are very easy to control

60.Which of the following words can best describe Emilio’s feeling about his army life?

A.Adventurous              B.Happy                     C.Boring                     D.Terrible

61.When Michael became crazy, he would_____________.

A.try to kill people                                             B.apologize to people

C.beat people violently                                    D.feel guilty about himself

62.According to the passage, many children who become child soldiers_________.

A.are very poor                                                     B.have lost their parents

C.are loyal to their country                       D.are braver than other children

题型:单项选择题

如图所示为梁在实际状态下的弯矩图MP图。EI=常数,则D点的竖向位移∆DY=()。

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