The values of artistic works, according to cultural relativism(相对主义), are simply reflections of local social and economic conditions. Such a view, however, fails to explain the ability of some works of art to excite the human mind across cultures and through centuries.

              History has witnessed the endless productions of Shakespearean plays in every major language of the world. It is never rare to find that Mozart packs Japanese concert halls, as Japanese painter Hiroshige does Paris galleries, Unique works of this kind are different from today’s popular art, even if they began as works of popular art. They have set themselves apart in their timeless appeal and will probably be enjoyed for centuries into the future.

               In a 1757 essay, the philosopher David Hume argued that because“the general principles of taste are uniform(不变的) in human nature,”the value of some works of art might be essentially permanent. He observed that Homer was still admired after two thousand years. Works of this type, he believed, spoke to deep and unvarying features of human nature and could continue to exist over centuries.

               Now researchers are applying scientific methods to the study of the universality of art. For example, evolutionary psychology is being used by literary scholars to explain the long-lasting themes and plot devices in fiction. The structures of musical pieces are now open to experimental analysis as never before. Research findings seem to indicate that the creation by a great artist is as permanent an achievement as the discovery by a great scientist.

“时京官每旦入朝，必与妻子诀，及暮无事则相庆，以为又活一日。”当时京官每天入朝，必与妻子诀别的原因是当时（　　）

    What is the number one favourite pet in the UK? If you think the answer is “dog” – you are wrong. There are 8.6 million cats and 8.3 million dogs in Britain according to recent figures. But experts predict (预测) that there will be more dogs than cats next year as dogs become more and more popular.

    Dogs as accessories (配饰)

    We like to spend time with our pets. The Queen is famous for her corgis (威尔士矮脚狗) and is often photographed with them. Nowadays some dog owners are more extreme（极端的） – a few TV celebrities even take their dogs shopping or to restaurants. Chihuahuas (吉娃娃犬) are especially popular as “handbag dogs” because they are so small.

    Dog holidays

    People are also giving their pets holidays. Many UK hotels and holiday parks now welcome dogs as guests. What about owners who go abroad? They can leave their pets at a dog hotel or dog spa while they are away. Some even provide their canine (犬) guests with a TV.

    Dogs are for life

    The British charity, Dogs Trust, finds homes for thousands of lost and homeless dogs every year. Their famous slogan（口号） “A dog is for life and not just for Christmas” was created in the 1970s to teach people about the responsibility（责任） of owning a dog. Dogs Trust told British people not to give dogs as gifts or treat them like toys.

    Dogs on TV

    Victoria Sitwell is the host（主持人） of the popular TV programme called “It's me or the dog”. In the show Victoria helps dog owners with their pets' bad behavior. She tries to find ways to problems such as a Dalmatian who thinks he owns the house and won't let the family sit on the sofa, dogs that will only eat ice cream and biscuits and even a bulldog（恶犬） who uses the owner's bed as a toilet. Yuck!

    Fashion for dogs

    You can shop online or on the high street for the latest in dog clothes and accessories（配件）. Specialist shops sell dog boots, dog dress costumes, dog coats, dog dresses and dog pants.

下列不属于细胞内组成脱氧核糖核酸的成分（ ）