若vehicle=['train','car','bus','subway','ship','bicycle','car'],则vehicle.count('car')结果是什么? A.carB.7C.1D.2
若vehicle=['train','car','bus','subway','ship','bicycle','car'],则vehicle.count('car')结果是什么?
A.car
B.7
C.1
D.2
相关考题：
I can’t afford a bicycle, _______ a car. A. not to speakB. not to mentionC. that’s to sayD. let alone
In order to cut down on the carbon emission, more people choose to travel＿．A．by electric car, bicycle or planeB．by private car, bicycle or busC．by bus, electric car or planeD．by bicycle, bus or electric car
Passage ThreePeople enjoy talking about "firsts." They like to remember their first love or their first car. But not all firstsare happy ones. Few people enjoy recalling the firsts that are bad.One of history's bad but important firsts was the first car accident. Autos were still young when it happened. The crash took place in New York City. The year was 1896. The month was May. A man from Massachusetts was visiting the city in his new car. At the time, bicycle riders were still trying to get used to the new set of wheels on the road. No one is sure who was at fault. In any case, the bike and the car collided. The man on the bike was injured. The driver of the car had to stay in jail and wait for the hospital report on the bicycle rider. Luckily, the rider was not killed.Three years later, another automobile first took place. The scene was again New York City, a real estate broker named Henry Bliss stepped off a streetcar. He was hit by a passing car. Once again, no one is sure just how it happened or whose fault it was. The driver of the car was put in jail. Poor Mr. Bliss became the first person to die in a car accident.44. In each accident the driver was ______.A. found guiltyB. set freeC. laughed atD. put in jail for a while
使用VC6打开考生文件夹下的工程test17_1，此工程包含一个源程序文件test17_1．唧，但该程序运行有问题，请改正程序中的错误，使程序的输出结果如下：Vehicle messageCar messageVehicle message源程序文件test17_1.cpp 清单如下:include ＜iostream.h＞class vehicle{int wheels;float weight;public:/***************** found *****************/void message(void){ cout＜＜"Vehicle message\n";}};class car:public vehicle{int passenger_load;public:/***************** found *****************/void message (void){cout＞＞"Car message\n";}};class truck:public vehicle{int passenger_load;float payload;public:int passengers(void){return passenger_load;}};void main(){vehicle * unicycle;unicycle=new vehicle;/***************** found *****************/unicycle.message()delete unicycle;unicycle=new car;unicycle-＞message();delete unicycle;unicycle=new truck;unicycle-＞message();delete unicycle;}
若已定义了类Vehicle，则下列派生类定义中，错误的是A．class Car：Vehicle{／*类体略*／)；B．class Car：public Car{／*类体略*／)；C．class Car：public Vehicle{／*类体略*／)；D．class Car：virtual public Vehicle{／*类体略*／)；
若vehicle=[['train','car'],['bus','subway'],['ship','bicycle'],['car']],则len(vehicle)结果是什么? A.1B.7C.6D.4
若vehicle=[['train','car'],['bus','subway'],['ship','bicycle'],['car']],则len(vehicle[1][0])结果是什么? A.3B.7C.6D.4
若vehicle=[['train','car'],['bus','subway'],['ship','bicycle'],['car']],则len(vehicle[1])结果是什么? A.2B.7C.6D.4
22．．What kind of car does Mrs Hill have?A． A fast and new car．B． A fast but old car．C． A slow and old car．D． A fast but small car．
29． When people travel on business(出差) ,they usually take _________ ．A． a train or a planeB． a boat or a trainC．a car or a boat ．D．a plane or a car
In order to cut down on the carbon emission，more people choose to travel______.A．by electric car，bicycle or planeB．by private car，bicycle or busC．by bus，electric car or planeD．by bicycle. bus or electric car
Travelling by train to Tokyo takes approximately one hour less _____ travelling by car.A. for B. with C. as D. than
单选题What is the teacher doing in terms of error correction? T: Make a sentence with have .! S: He have a car . T: He HA VE a car? S: He HAS a car . T: Very good . He HAS a car .ADirect correction.BIndirect correction.CSelf-correction.DPeer correction.
单选题How did the narrator and his aunt travel to see his father?ABy car.BBy bus.CBy ship.DBy train.
单选题The text indicates that the Canadian airport officials seem to have ______.Ataken effective measures to solve the car-theft problemBoverestimated the seriousness of the car-theft problemCfailed to give proper attention to the car-theft problemDrealized the seriousness of the car-theft problem
单选题What is the teacher doing in terms of error correction? T: Make a sentence with have ! S: He have a car. T: He HA VE a car? S: He HAS a car. T: Very good. He HAS a car.ADirect correction.BIndirect correctionCSelf-correction.DPeer correction.
单选题The purpose of the passage is to advertise _____.Acar-renting services in the USBa special rate of car-rentingCthe advantages of car-rentingDa US car-renting company
单选题11. abstract class Vehicle { public int speed（） { return 0； } } 12. class Car extends Vehicle { public int speed（） { return 60； } } 13. class RaceCar extends Car { public int speed（） { return 150； }} ...... 21. RaceCar racer = new RaceCar（）； 22. Car car = new RaceCar（）； 23. Vehicle vehicle = new RaceCar（）； 24. System.out.println（racer.speed（） + “， „ + car.speed（） 25. + “， “+ vehicle.speed（））； What is the result？（）A 0， 0，0B 150， 60， 0C Compilation fails.D 150， 150， 150E An exception is thrown at runtime.
单选题It is _____ he is determined.Abuying a new car thatBto buy a new car thatCto buy a new car whatDbuying a new car which