视网膜为神经组织，主要组成的细胞是（）。A、色素上皮细胞 B、视细胞 C、双极细胞

How do you feel when you stay in hospital alone? Jenny, 13, a US student, feels bored. She knows the feeling because she has been in hospital many times herself. One day, she thought of an idea—if patients could get some books to read, they would feel better. So, from May, she and many of her friends began to collect books for hospital patients.

In six months the students collected 1,250 books at school. They decided to donate the books to the North Shore Medical Centre, a children’s hospital next door to their school. “There are books for kids of all ages, from babies up to high school level.” said Jenny.

The students put the books into “early readers”, “middle readers” and “advanced readers”. Then they wrote their best wishes to patients on bookmarks (书签) and letters, put the books in big boxes and donated them to the hospital.

“We wrote things like, “Keep on reading!’ and ‘Hope you feel better!’,” siad John, 14, Jenny’s brother. “And we also wrote some funny things to make them laugh.”

Frank, 12, and Steven, 14, helped carry 16 large boxes of books into a car. “I think these books will make me a lot of patients feel happy.” said Frank. Steven shared his opinion. “It is really the most meaningful thing that I have ever done in my life.”

小题1:Who first thought of the idea of helping those bored patients in hospital?

A．John.

B．Frank.

C．Steven.

D．Jenny.小题2:From the article, we can learn that _______.

A．in half a year Jenny and her friends bought 1,250 books

B．the North Shore Medical Centre is far from Jenny’s school

C．Jenny and her friends were willing to help bored patients

D．Steven had a different opinion from Frank and John小题3:The best title for the article might be “_______”.

A．Collecting books for bored patients

B．Writing a letter to a medical centre

C．Donating books to poor students

D．Reading books for hospital patients小题4: Which of the following words can be used to describe those student?

A．Polite and hard-working

B．Lazy and stubborn

C．Selfish and proud

D．Thoughtful and helpful

时庞羲探知张鲁欲兴兵取川，急报知刘璋。璋平生懦弱，闻得此信，心中大忧，急聚众官商议。忽一人昂然而出曰：“主公放心。某虽不才，凭三寸不烂之舌，使张鲁不敢正眼来觑西川。”                                                                      《三国演义》

正当刘璋束手无策之际，谁自告奋勇前去许都？他准备把西川地图秘密献给曹操，但后来这地图又到了谁的手上？请你简述事情的经过。

建筑工程冬期施工规程（JGJ104-2011）：冻土挖掘应根据冻土层的厚度和施工条件，采用（）等方法进行

A.融合后挖掘

B.机械

C.人工

D.爆破

[文字开始] 数据可视化能使人们用视觉器官直接感受到数据的许多内在本质。因此，数据可视化是人们研究科学、认识世界所不可缺少的手段。MATLAB不仅在数值计算方面是一个优秀的科技应用软件，在数据可视化方面也具有上佳表现。 MATLAB具有二维、三维乃至四维的图形表现能力。可以从线型、边界面、色彩、渲染、光线、视角等方面把数据的特征表现出来。 [文字结束]

该药物的见效时间为

A．1周
B．1～2周
C．2～4周
D．5周
E．6周