在历史文化名城内的历史文化街区的保护区，又称（)。A.缓冲区B.核心保护范围

A．danger

B．happy

C．angery

D．terrible

听力原文：How much is the tip for taxi drivers？

How much is the tip for taxi drivers？

It is usually ___________________of the bill.

听力原文： London taxi drivers know the capital like the back of their hands. No matter how small or indistinct the street is, the driver will be able to get you there without any trouble. The reason why London taxi drivers are so efficient is that they all have gone through a very tough training period to get a special taxi driving license. During this period, which can take two to four years, the would-be taxi driver has to learn the most direct route to every single road and to every important building in London. To achieve this, most learners go around the city on small motorbikes practicing how to move to and from different points of the city. Learner taxi drivers are tested several times during the training period by government officers. The exams are terrible experiences. The officer asks you "How do you get from Birmingham Palace to the Tower of London？" and you have to take them there in the direct line. When you get to the tower, they won't say "well done". They will quickly move on to the next question. After five or six questions, they will just say "See you in two months' time." and then you know the exam is over. Learner drivers are not allowed to work and earn money as drivers. Therefore, many of them keep their previous jobs until they have obtained the license. The training can cost quite a lot, because learners have to pay for their own expenses on the tests and the medical exam.

Why are London taxi drivers very efficient？

A．Because they have a driving license.

B．Because they have received special training.

C．Because the traffic conditions in London are good.

D．Because the traffic system of the city is not very complex.

small or indistinct the street is, the driver will be able to get you there without any trouble. The reason London taxi drivers are so efficient is that they all have gone through a very tough training period to get a special taxi driving license. During this period, which can take two to four years, the would-be taxi driver has to learn the most direct route to every single road and to every important building in London. To achieve this, most learners go around the city on small motorbikes practicing how to move to and from different points of the city. Learner taxi drivers are tested several times during the training period by government officers. The exams are terrible experience. The officers ask you "How do you get from Birmingham palace to the Tower of London？" and you have to take them there in the direct line. When you get to the tower, they won't say "well done". They will quickly move on to the next question.

How long does the training period last？

A．About three weeks.

B．At least half a year.

C．Two years or more.

D．Two to four months.

听力原文： London taxi drivers know the capital like the back of their hands. No matter how small or indistinct the street is, the driver will be able to get you there without any trouble. The reason London taxi drivers are so efficient is that they all have gone through a very tough training period to get special taxi driving license. During this period, which can take two to four years, the would-be taxi driver has to learn the most direct route to every single road and to every important building in London. To achieve this, most learners go around the city on small motorbikes practicing how to move to and from different points of the city. Learner taxi drivers are tested several times during the training period by government officers. The exams are terrible experience. The officers ask you "How do you get from Birmingham Palace to the Tower of London？" and you have to take them there in the direct line. When you get to the tower, they won't say "Well done!". They will quickly move on to the next question. After five or six questions, they will just say "See you in two months' time." and then you know the exam is over. Learner drivers are not allowed to work and earn money as drivers. Therefore, many of them keep their present jobs until they have obtained the license. The training can cost quite a lot, because learners have to pay for their own expenses on the tests and the exam.

Why are London taxi drivers efficient？

A．Because they all grow up in London.

B．Because they have a special license.

C．Because they all have gone through a very tough training period.

D．Because they drive at a high speed.

Which of the following statements is true about New York taxi drivers？

A．They are ready to help you do whatever you want to.

B．They refuse to pick up those who would kill themselves,

C．They are sympathetic with those who are out of work.

D．They work only for money.