问题
单项选择题
机身结构中的加强隔框除了具备普通隔框维持机身剖面形状和传递局部气动力作用外，还具有：（）.
A.加强机翼和尾翼结构强度和刚度的作用
B.承受并传递部件传来的集中载荷作用
C.承受并传递机身所受剪切应力的作用
D.加强机身蒙皮与桁条构成的壁板的强度的作用
答案
参考答案：B
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机身结构中的加强隔框除了具备普通隔框维持机身剖面形状和传递局部气动力作用外，还具有：（）.
A.加强机翼和尾翼结构强度和刚度的作用
B.承受并传递部件传来的集中载荷作用
C.承受并传递机身所受剪切应力的作用
D.加强机身蒙皮与桁条构成的壁板的强度的作用
参考答案：B
Part One China’s worst drought in fifty years is doing harm to most of the country’s south. Hubei, Hunan, Jiangxi, Anhui and Jiangsu provinces have suffered the most because of little rain.35 million people have been affected by the big thirst, according to China’s Ministry of Civil Affairs.4 million of them cannot get safe drinking water. Dongting Lake in Hunan has now become smaller by two thirds. Gao Yibing, fisherman, said, “No eggs were produced, so there’s no young fish. We would not be able to fish anything in autumn and winter.” Part Two Medecims Sans Frontieres, or Doctors Without Borders, is a group that helps people in need. In 1971,some French doctors and journalists formed MSF. In 1999,MSF won the Nobel Peace Prize. Doctors of MSF go to different countries to help poor people for free. These people are sick and hurt. They do not have enough money, food or water. MSF work in more than 70 countries including Iraq and Sudan. There are wars, disasters or diseases in these countries. MSF doctors treat these sick people and speak out for them. They try to tell the world about what they see in the poor countries. This makes the world pay more attention to these places. Part Three
小题1:The best title for Part One may be _______.
 tion about ________.
 king two tickets for 2011 China Music Valley,you can save ________.
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