摘要：[单选]本文词数:296 参考时间:2'17'' Robots are no longer just characters in science fiction novels or films. Now they are important helpers in real life. Zhongshan Hospital is the only hospital in China to have introduced a robotic system from abroad to assist with heart surgery. More than 30 heart disease patients have had operations with robotic assistance. All have reported good results. The technology, developed by the United States, has only been in use since the late 1990s. Zhongshan Hospital bought it in 2000. During surgery, a robotic arm holds the endoscope under the direction of the surgeon, who controls the surgical tools. The surgery team can be reduced from four to two people. "Because it is a machine, the robotic arm is more exact and can improve safety,"said Zhao Qiang, a surgeon at Zhong-shan Hospital. "It won’t shake or make a big move that hurts the patient. It also remembers the important spots and quickly goes exactly where I want it to." As the system is still in its infancy, doctors are only using it on selected patients, generally those who are younger and stronger. The system still needs to be improved. Experts believe that robotic assistance in surgery is the future of medicine, since most operations only need small cuts. Doctors only need to make three small cuts in the chest, allowing for the entrance of the endoscope and two surgical tools.After that, they can do the operation freely. Scientists in the US have now developed a more advanced robotic system. It has three arms and takes the lead surgeon’s place. The surgeon doesn’t need to use a knife to do the operation himself. Instead, he can look at the screen and give orders to control the robot. The hospital plans to buy one within three years. Notes:

网址：http://m.1010jiajiao.com/timu3_id_2959754[举报]