题目

.DNA复制也是一个物质合成的过程，此过程需要的物质是（  ） ①酶 ②氨基酸 ③脱氧核苷酸 ④DNA ⑤ATP A.①②③④ B.②③④⑤ C.①②③⑤ D.①③④⑤   答案：D此题考查了DNA复制的条件，需要解旋酶、游离的脱氧核苷酸、DNA模板链、ATP能量。  根据下面短文的内容判断下列句子的正误，正确的用“A”表示，错误 的用“B”表示。    Pearl S．Buck (赛珍珠·巴克) was a very popular American writer of her day. She was famous for her books about China. Pearl S.Buck was awarded the Nobel Prize for Literature (诺贝尔文学奖)in 1938. The writer was born in West Virginia, America. She spent almost half of her long life in China.Her youth was spent in Jiangsu Province, China. She learned to speak Chinese before she could speak English. Her mother had traveled widely in her youth and liked literature very much. After being educated by her mother and by a Chinese teacher, Pearl S. Buck went to school in Shanghai at the age of fifteen. She continued her education in the United States at a Woman's College to study psychology (心理学). After graduating in 1914, she returned to China as a teacher. In the 1920s her family moved to Nanjing. There she taught English and American literature at a university. As a writer, Buck's book, The Good Earth,appeared in 1931 and sold quite well in its first year. It has been translated into over thirty languages. In 1938 she became the third American to win the Nobel Prize for Literature. By the time of her death,Pearl had published (出版) more than seventy books. Pearl S.Buck died in March, 1973, just two months before her 81st birthday. (      )1. Before she went to school in Shanghai, Pearl S.Buck studied all by herself. (      )2. Pearl S.Buck was known to many people for her books about China． (      )3. In 1914, Pearl S.Buck worked as a literature teacher at.a university in Nanjing. (      )4. Pearl S.Buck went to study literature at a Woman's College in America. (      )5. Pearl S.Buck won the Nobel Prize for Literature in 1938 and published over seventy books in her life.