第2部分：阅读判断(第16—22题，每题1分，共7分)下面的短文后列出了7个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是正确信息，请选择A；如果该句提供的是错误信患，请选择B；如果该句的信息文中没有提及，请选择C。
16、回答16-23题
　　Engineers who build and program robots have fascinating jobs. These researchers tinker(修补) with machines in the lab and write computer software to control these devices. "They'rethe best toys out there," says Howie Choset at Carnegie Mellon University in Pittsburgh. Chose!is a roboticist, a person who designs, builds or programs robots.
　　When Choset was a kid, he was interested in anything that moved —— cars, trains, animals.He put motors on Tinkertoy cars to make them move. Later, in high school, he built mobilerobots similar to small cars.
　　Hoping to continue working on robots, he studied computer science in college. But whenhe got to graduate school at the California Institute of Technology in Pasadena, Choset'slabmates were working on something even cooler than remotely controlled cars: robotic snakes.Some robots can move only forward, backward, left and fight. But snakes can twist (扭曲) inmany directions and travel over a lot of different types of terrain (地形). " Snakes are far moreinteresting than the cars," Choset concluded.
　　After he started working at Carnegie Mellon, Choset and his colleagues there begandeveloping their own snake robots. Cboset's team programmed robots to perform the samemovements as real snakes, such as sliding and inching forward. The robots also moved in waysthat snakes usually don't, such as rolling. Choset's snake robots could crawl (爬行) throughthe grass, swim in a pond and even climb a flagpole.
　　But Cboset wondered if his snakes might be useful for medicine as well. For some heartsurgeries, the doctor has to open a patient's chest, cutting through the breastbone. Recoveringfrom these surgeries can be very painful. What if the doctor could perform the operation byinstead making a small hole in the body and sending in a thin robotic snake?
　　Choset teamed up with Marco Zenati, a heart surgeon now at Harvard Medical School, toinvestigate the idea. Zenati practiced using the robot on a plastic model of the chest and thentested the robot in pigs.
　　A company called Medrobotics in Boston is now adapting the technology for surgeries on people.
　　Even after 15 years of working with his team's creations, "I still don't get bored of watching the motion of my robots," Choset says.

Choset began to build robots in high school.
A．Right
B．Wrong
C．Not mentioned

17、 Snake robots could move in only four directions.
A．Right
B．Wrong
C．Not mentioned

18、 Choset didn't begin developing his own snake robots until he started working Carnegie Mellon.
A．Right
B．Wrong
C．Not mentioned

19、 Choset's snake robots could make more movements than the ones others developed.
A．Right
B．Wrong
C．Not mentioned

20、 The application of a thin robotic snake makes heart surgeries less time-consuming.
A．Right
B．Wrong
C．Not mentioned

21、 Zenati tested the robot on people after using it in pigs.
A．Right
B．Wrong
C．Not mentioned

22、 The robotic technology for surgeries on people has brought a handsome Medrobot- ics.
A．Right
B．Wrong
C．Not mentioned