患者，14岁，男性，因鼻塞、反复鼻出血就诊，前鼻镜检查见鼻腔后_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

患者，14岁，男性，因鼻塞、反复鼻出血就诊，前鼻镜检查见鼻腔后部淡红色肿瘤。首先应考虑（）

A.鼻咽纤维血管瘤

B.出血坏死性息肉

C.鼻咽癌

D.鼻咽脊索瘤

E.以上均不是

答案

参考答案：A

阅读理解

C

	GONE WITH THE WIND Author: Margaret Mitchell ￥25 (in bookstores) ￥18 (online) Gone With the Wind is a best-seller, which tells a story that happened in the American Civil War． Scarlett O’Hara is a woman in the story who is full of energy． She is strong and saves her family but is very selfish at the same time．
A LITTLE PRINCESS Author: Frances Hodgson Burnett ￥18．3 (online) Motherless Sara Crewe was sent home from India to school at Miss Minchin’s ．Her father was very rich and she lived a rich and comfortable life． Then her father died and Sara lost everything． She had to learn to do with her changed life． Her strong character made her able to fight successfully against her poverty (贫穷) and the scorn (嘲笑) of her fellows． It’s an excellent book with 4 tapes for children．
	PETER PAN Author: J．M Barrie ￥15 (in bookstores) ￥12 (online) It is a children’s story full of imagination and adventures, which is about Wendy, John, and Michael Darling’s adventures in Never—Never Land with Peter Pan, the boy who would not grow up． The children are happy and lovely． (with 2 tapes)
UNCLE TOM’S CABIN Author: Harriet Beecher Stowe ￥20 (in bookstores) The most famous novel in American history, Uncle Tom’s Cabin talked about the struggle (斗争) between free states and slave states during the American Civil War and is as powerful today as when it first came out 150 years ago．
	THE SECRET GARDEN Author: Frances Hodgson Burnett ￥35 (in bookstores) ￥30 (online) Mary Lennox, a sickly orphan (孤儿), finds herself in her uncle’s dark house． Why are so many rooms locked? Why is one of the gardens locked? And what is that crying she hears at night? Through the power of hope, friendship, and the magic (魔法) of nature, the brave girl brings the house and a long-lost garden back to life．

小题1:All of the following books have children as their main characters (主角) except ______．

A．PETER PAN	B．GONE WITH THE WIND
C．A LITTLE PRINCESS	D．THE SECRET GARDEN

小题2:We can know from the passage that _________．

A．there are only three books with tapes

B．we can buy 5 kinds of the above books in bookstores

C．two of the above books are written by Frances Hodgson Burnett

D．THE SECRET GARDEN is ￥5 cheaper in bookstores than online

小题3:Mary brings the house and a long-lost garden back to life with the help of _________．
a．the power of hope b．friendship c．her uncle d．nature’s magic

小题4:Which of the following about the books is mentioned in this passage?

A．What Sara did to help her fellows．

B．Why Peter Pan wouldn’t grow up．

C．What kind of woman Scarlett is．

D．How Marry Lennox came into her uncle’s house．

填空题

建筑工人用如图所示的装置把重400N的物体匀速提升3m．所用的手拉力为300N．则该工人所做的有用功为 J，总功为 J，该滑轮组的机械效率是（保留三位有效数字）．若用该装置提升500N的重物，此时滑轮组的机械教率将（填“变大”、“变小”或“不变”）．