关于原发性中枢神经系统淋巴瘤的临床表现，叙述错误的是（） A.可以侵犯脑膜表现为假性

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From the health point of view we are living in a wonderful age. We are immunized from birth against many of the most dangerous diseases. A large number of once fatal illnesses can now be cured by modern drugs and surgery. It is almost certain that one day medicines will be found for the most stubborn remaining diseases. The expectation of life has increased largely. But though the possibility of living a long and happy life is greater than ever before, every day we witness the unbelievable slaughter (屠杀) of men, women and children on the roads. Man versus the motor-car! It is a never-ending battle which man is losing. Thousands of people the world over are killed or horribly killed each year and we are quietly sitting back and letting it happen.
It has been rightly said that when a man is sitting behind a steering wheel（方向盘）, his car becomes the additional part of his personality. There is no doubt that the motor-car often brings out a man’s very worst qualities. People who are normally quiet and pleasant may become unrecognizable when they are behind a steering-wheel. They swear, they are ill-mannered and aggressive, willful as two-year-olds and completely selfish. All their hidden anger, disappointments and envies seem to be exposed by the act of driving.
The surprising thing is that society only smiles so kindly on the motorist when seeing his behaviors talked about above. Everything is done for his convenience. Cities are allowed to become almost unsuitable to live because of heavy traffic; towns are made ugly by huge car parks; the countryside is damaged by road networks; and the mass annual slaughter becomes nothing more than a statistic, to be conveniently forgotten.
It is high time a world code were created to reduce this senseless waste of human life. In regard to driving, the laws of some countries are dishonorably loose and even the strictest are not strict enough. A code which was universally accepted could only have a dramatically beneficial effect on the accident rate. Here are a few examples of some things that might be done. The driving test should be standardized and made far more difficult than it is; all the drivers should be made to take a test every three years; the age at which young people are allowed to drive any vehicle should be raised to at least 21; all vehicles should be put through inflexible annual tests for safety. Even the smallest amount of alcohol in the blood can destroy a person’s driving ability, so present drinking and driving laws (where they exist) should be made much stricter. The highest and lowest speed limits should be put on all roads, as has been done in the USA. All advertising stressing power and performance should be banned. These measures may sound unacceptably harsh. But surely nothing should be considered to be too severe if it results in reducing the annual loss of human life. After all, the world is for human beings, not for motor-cars.