本机或通过冠字号码查询系统（软件），可实现取款业务信息与冠字号码记录的关联，能在假币

阅读表达。

     A young man couldn't sleep well every night. He was very worried. One day he went to see the

doctor. The doctor looked him over carefully. But nothing wrong with him. The doctor told him to

count from l to 10 again and again. " Keep doing it until you fall asleep," the doctor said.    

     After a few days,the young man came to the doctor again. But to his surprise,the doctor found the

young man was even worse than before! "Didn't you count as I told you?" the doctor asked. "Yes,I did,"

the young  man answered. " But every time when I reached eight,I couldn't help jumping from bed. "        

     " But why?" the doctor wanted to know. The young man said,"I  am a boxer(攀击运动员 ). "

根据短文内完成下列各题。

l. The young man had to go to see a doctor because___________________________

2. Was there anything wrong with the young man?

    ___________________________

3. The doctor told the young man to___________________________

4. The young man came to the doctor again because___________________________

5. What is the young man?

    ___________________________

读“人口再生产类型转变示意图”，回答下列问题。

（1）图中斜线部分表示________________，计算方法是__________________________。

（2）图中处于人口增长模式“过渡型”阶段的是_______（填字母）。目前按经济发展水平，_________

    国家或地区从总体上看应属于该类型。

（3）图中人口死亡率不断下降的是______（填字母）。

（4）图中人口年龄结构呈老年型，世代更替缓慢的是______阶段（填字母）。

（5）我国人口增长模式已接近______型，这种转变主要是因为我国大力开展__________________工作的

    而取得的。

铜的熔点为（）

A、600

B、1083

C、1539

D、1100

用电压表测出电阻两端的电压、电流表测出通过电阻的电流，求出电阻值的方法是测量电阻的（）。

A.伏安法

B.欧姆定律法

C.惠斯通电桥

D.虎克定律

简述X线图像的特点。