题目

April 23 marks the 400th anniversary of William Shakespeare’s death. Organizations in Britain have planned numerous events to honor him.     In Stratford-upon-Avon, his birthplace, the tourism organization has a great number of free events, including performances of Shakespeare’s plays, and a dazzling fireworks display. And the BBC is broadcasting a live show from Stratfore-upon-Avon, celebrating Shakespeare’s widespread influence on the world. In England’s capital, the London Shakespeare Centre is holding a series of public performances, exhibitions and activities. It isn下列有关细胞的癌变和衰老，叙述正确的是A.癌细胞膜上糖蛋白减少，细胞中核糖体多B.癌细胞没有细胞周期C.衰老细胞中DNA含量多于正常的细胞D.细胞衰老的本质是不同细胞中遗传信息的执行情况不同