长江沿江的城市凭借便利的水运发育起来，如今形成了上海、南京、城市④、重庆等四个特大城市，④位于（ ）
A．湘江与长江干流交汇处
B．嘉陵江与长江干流交汇处
C．汉江与长江干流交汇处
D．黄埔江与长江干流交汇处
位于长江、汉江交汇处的湖北省行政中心武汉，古称江夏，由武昌、汉口、汉阳三镇组成，素有“九省通衢”之称，是我国中南部的水陆交通中心．今天的武汉，仍然是长江中游地区的最大城市和交通枢纽．
故选：C．
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| Earthquakes are 1 ; thousands of them happen each day. But most are too weak to feel. During a 2 earthquake, there is often a great noise first. Then the earth 3 terribly; many houses 4 down. Railway tracks break and trains go 5 lines; a great many factories are 6 ; thousands of deaths are caused, and many more lose homes... 7 the great damage and deaths caused by the earthquake 8 , other disasters such as fires often 9 . More buildings are destroyed and more 10 are caused. It is well known of the 11 of a possible earthquake, and for centuries man has been making researches on earthquakes. More than 2,000 years ago, 12 , a Chinese scientist named Zhang Heng 13 a machine which could find out from which 14 the seismic (地震的) waves had come, and this machine is still 15 by scientists today. Now we know much more about earthquakes and 16 they happen, but we still cannot 17 exactly when and where an earthquake will happen, and cannot 18 it from happening. So earthquakes are among the 19 disasters in the world. No one can stop natural earthquakes. 20 , scientists can help stop earthquakes from destroying whole cities and causing too many deaths. | ||||
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