
某旅行团到达上海欢乐谷时,有游客因中暑无法参加游乐活动,要求退还欢乐谷部分费用,导游员的正确做法是()
A.立即退还该旅游未享受的费用
B.耐心说明情况不予退还
C.让他旅游活动结束后与报名旅行社按协议处理
D.让他与欢乐谷工作人员协商


A.立即退还该旅游未享受的费用
B.耐心说明情况不予退还
C.让他旅游活动结束后与报名旅行社按协议处理
D.让他与欢乐谷工作人员协商
People in several American states may be surprised to see cars in city streets without a driver. Experimental driverless vehicles now are legal in Florida, Nevada and California. They are pointing the way to a future that is not far down the road. The high-tech company Google has a number of self-driving cars, Which had covered 480,000 kilometers by August. Volvo is among the companies dong road tests and says in plans to sell driverless cars by 2020.
In September, California Governor Jerry Brown signed an act to allow autonomous vehicles on the roads of his state. “Today we’re looking at science fiction becoming tomorrow’s reality—the driverless car.” The systems been improved through competitions sponsored by the U. S. government agency DARPA. Engineer Richard Mason of the Rand Corporation helped design driverless vehicles for DARPA challenge races.
Cars have become much more fuel-efficient, and new electronic features are making Hondas safer, said Angie Nucci of Honda America. “A camera on the passenger-side mirror actually engaged on your guiding screen so you can safely change lanes.” Other safety features include warning systems on the front and the sides of the cars. The syatems help drivers, but don′t replace them. Curatou Leslie Kendall of the Petersen Automotive Museum said autonomous cars will make the high ways safer.
“By taking out drivers, you also remove most risks of an accident,” Kendall said, you also remove most risks of an accident,” Kendall said. He said consumers, however, may be unwilling to lose control. “It may take them time to come to realize that the technology is indeed reliable, but it will have to prove itself first”,
Mason said the technology already works and the biggest challenge now is getting down the cost for driverless vehicles from hundreds of thousands of dollars to something more affordable. He said this will happen as the technology is improved.