已知函数f（x）=2sinx，g（x）=sin（π2-x），直线x=m与f（x）

根据某地级市基础测绘工作的需要，计划采用航空摄影测量方法生产该地区1:2000地形图，前期已经完成全部测区的航空摄影工作以及区域网外业按制点的布设和测量工作，现阶段的主要工作是完成全部测区的解析法空中三角测量任务。该测区面积约为5400km²，东西长约90km，南北长约60km，测区内陆地最低点高程为120m，最高点高程为400m。全测区包含平地和山地两种地形，平地面积约占60%，集中在南部，山地集中在北部。测区内建成区面积约为600km²，分布在平坦地区，建成区内以多层建筑为主，房屋密集，农村地区多为一两层建筑。
摄影胶片为真彩色航空摄影像片，航空摄影机型号为RC-30，像幅为230mm×230mm，焦距为152mm，摄影比例尺为1:10000，航片的航向重叠度为65%，旁向重叠度为35%。
项目承担单位在完成整个测区外业控制点施测、测量控制工作后，进行解析法空中三角测量，平面坐标采用2000国家大地坐标系，高程采用1985国家高程基准。在野外测绘工作完成后，进行内业作业和立体测量，然后对立体测图数据成果进行了一系列相关质量检查。
问题：

本案例所采用的解析法空中三角测量中，模型连接高程较差不应大于多少？(提示：高程较差公式采用[*])

Before a new type of airplane goes into service, every part of it is tested again and again. But there are two tests that are more important than all the others.

The first is called the " tank(贮水池) test". A modem airplane must fly very high in the sky. Air must be pumped into the plane so that the passengers can breathe. The metal structure (结构)of the plane has to be very strong for this reason. When the plane is filled with air, the air presses against the skin of the plane inside. The pressure (压力) on a small window is like a huge foot that is try­ing to get out. If a small part of the plane were to fail, the plane would explode (爆炸)in the sky. To test the structure of the plane, the plane is lowered into a huge tank or container of water. Then it is filled with air.  The pressure inside the plane is greater than it ever will be when it is high up in the air. Finally, there is an explosion. This does not cause so much damage inside the water tank as it would anywhere else. Engineers can discover which part of the plane has broken. Then that part is made stronger. 

The most dangerous test happens when the new plane is going through test flights in the air. The pilot must find out exactly what happens when the engines (发动机) are all shut off at once. The plane begins to fall like a stone. It is the pilot’s job to find out how he can get control of the plane again. These two tests are examples of how planes are made safe before they ever carry passengers.

小题1:By doing the "tank test", the engineers can find out _______.

A．the amount of air in the plane

B．the strength of the plane structure

C．the pressure inside and outside the plane

D．the power of the airplane engines小题2:What will happen to the plane under the "tank test"?

A．It will be broken.

B．It will be made stronger.

C．It will be filled with water.

D．It will be tested by pilots,小题3:According to the text, why are test flights most dangerous?

A．The plane may explode in the air.

B．The pilot may lose control of the plane.

C．The engines may be damaged.

D．Too much air may get into the plane.小题4:What might be the most suitable title for the text?

A．Two Important Tests on Airplanes

B．The Importance of Flying Safely

C．The Danger of Testing Airplanes

D．How Airplanes Are Made and Tested

阅读材料，完成后面的问题。

　　在一个小火车站，一个扳道工正走向自己的岗位，去为一列徐徐而来的火车扳动道岔。这时在铁轨的另一头，还有一列火车从相反的方向驶近车站。假如他不及时扳道岔，两列火车必定相撞，造成不可估量的损失。

　　这时，他无意中回过头一看，发现自己的儿子正在铁轨那一端玩耍，而那列开始进站的火车就行驶在这条铁轨上。抢救儿子或避免一场灾难——他可以选择的时间太少了。那一刻，他威严地朝儿子喊了一声：“卧倒！”同时，冲过去扳动了道岔。

　　一眨眼的工夫，这列火车进入了预定的轨道。那一边，火车也呼啸而过。车上的旅客丝毫不知道，他们的生命曾经千钧一发，他们也丝毫不知道，一个小生命卧倒在铁轨边上——火车轰鸣着驶过，孩子毫发未伤。

　　那个扳道工只是一个普普通通的人。他惟一的优点就是忠于职守，从没迟到、早退或误工过一秒钟。更让人意想不到的是，他的儿子是一个弱智儿童。他曾一遍又一遍地告诫儿子：“你长大后能干的工作太少了，你必须有一样是出色的。”儿子听不懂父亲的话，依然傻乎乎的，但在生命攸关的那一秒钟，他却“卧倒”了——这是他在跟父亲玩打仗游戏时惟一听懂并做得最出色的动作。

①、多角度提炼观点。

A．_____________________________

B．_____________________________

C．_____________________________

D．_____________________________

②、选取其中的一个观点，补充一个事实论据。

观点：_________（只填序号）

论据：_____________________________

小儿最常见的尿路感染途径是（）

A.逆行感染

B.血源性感染

C.淋巴感染

D.邻近组织浸润

E.外伤

综合确定客户经理等级的指标包括（）

A.年龄

B.管户贷款规模

C.到期回收率

D.客户满意度