题干

下列生理活动不能发生在蓝藻细胞内的是(    )

A:氨基酸脱水缩合成多肽链

B:DNA中个别碱基被替换

C:葡萄糖氧化分解并释放能量

D:核糖体的形成与核仁有关

上一题 下一题 0.0难度 选择题 更新时间:2019-07-18 09:02:28

答案(点此获取答案解析)

D

同类题2

阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项。

      Florence Nightingale was born in a rich family.When she was young she took lessons in music and drawing,and read a lot of books.She also travelled a great deal with her mother and father.

      As a child she felt that visiting sick people was both a duty and a pleasure.She enjoyed helping them.At last her mind was made up.“I’m going to be a nurse,” she decided.“Nursing isn’t the right work for a lady,” her father told her.

       “Then I will make it so,” she smiled.And she went to learn nursing in Germany and France.When she returned to England,Florence started a nursing home for women.

      During the Crimean War in 1854 she went with a group of thirty-eight nurses to the front hospitals.What they saw there was terrible.Dirt and death were everywhere to be seen and smelled.The officer there did not want any woman to tell him how to run a hospital,either.But the brave nurses went to work.

      Florence used her own money and some from friends to buy clothes,beds,medicines and food for the men.Her only pay was in smiles from the lips of dying soldiers.But they were more than enough for this kind woman.

      After war she returned to England and was honoured for her services by Queen Victoria.But Florence said that her work had just begun.She raised money to build the Nightingale Home for Nurses in London.She also wrote a book on public health,which was printed in several countries.

Florence Nightingale died at the age of ninety,still trying to serve others through her work as a nurse.Indeed,it is because of her that we honour nurses today.

同类题3

根据短文内容,选择最佳答案。

    I was a bit of a bookworm as a child.For car journey,day trip or family holiday,many books were always packed to keep me busy.Since then,I've continued reading all kinds of books but I'll always love my childhood favorites.

    The Curious Incident of the Dog in the Night-timer—Mark Haddon

    This children's mystery novel is interesting,exciting,thought-provoking(发人深省的),sad and happy all at the same time.The main character is a 15-year-old boy who has autism(自闭症). The book gives you a window into his world, his thoughts, his hopes and his dreams. It's easy to read and both kids and adults love it.A must-read in my opinion.

    Secret Seven—Enid Blyton

    If you love adventures,this one is for you.The Secret Seven are a group of child detectives who make it their duty to solve crimes.They have many adventures along the way.It's a fun book that you won't want to stop reading. And in fact, there is more than.one book.There's a series of books about the Secret Seven's adventures so if you like the first one, you're in luck.

    Matilda—Roald Dahl

    It's now a film and show at the theatre,but we can't forget the original book.Matilda is about a loveable little girl who is very clever and,like me,loves to read.She goes to school and meets the very scary Miss Trunchbull who tortures(折磨)children,but thankfully makes friends with a kind teacher. The book will have you crying one, moment and laughing the next.

    The Lion, the Witch and the Wardrobe—C.S.Lewis

    As a kid I read the book, watched the film and listened to the tape.I really couldn't get enough of the book.It's an exciting story set in a magical land called Narnia. When you're reading it, you'll feel like you're really there.You'll get caught up in the adventures of the four children and the characters they meet.I can't rate it highly enough.