问题 单项选择题

能同时显示神经纤维、扣结以及老年斑的染色方法是()

A.Bielschowsky染色法

B.Holmes染色法

C.VonBraunmubl染色法

D.Eager染色法

E.Weil染色法

答案

参考答案:C

解析:Holmes染色法神经纤维呈黑色,背景灰紫色;Bielschowsky染色法显示的是细胞的神经纤维,同时可观察到神经元的内部及胞体外部状况,神经纤维呈黑色,背景紫色;VonBraunmubl染色法能同时显示神经纤维和扣结以及老年斑;Eager染色法用于显示退变神经纤维,呈黑色,背景浅棕色。Weil染色法用于显示髓鞘。

阅读理解

Life in the 21st century is different from that in the 20th century because there are many changes in the new century.What will our life be like in 20 years?Maybe we will have robots at home. Here is my ideal robot.

I hope it’ll look like a pretty Barbie doll,with long blonde hair and bright blue eyes. She will be tall and slim. She will be able to speak English, Chinese, Japanese, German and French. When I travel around the world, she will be my guide. She will do most of the things for me. We will be also good friends.

Every morning she will wake me up and cook a healthy breakfast for me. After breakfast she will drive me to school. While I am studying at school, she will do some chores such as washing my clothes,cooking the dishes,cleaning the room and feeding my dog. When I come back from school, a delicious meal will be ready. If my mother is busy, my robot will go shopping with me. She will give me some advice when I don’t know which one to buy. She will also help me with my school work.

My robot will be smart and kind. If I feel sad, she will talk to me and make me happy. Most of all, she’ll never feel tired or angry, I hope I can have a robot like that. But my mum says it’s just my daydream and I should learn to do them all by myself.

小题1:What will the robot look like?

A It will have short blonde hair.        B It will have long black hair.

C It will be short and heavy.           D It will be tall and slim.

小题2:How many languages will the robot be able to speak?

A Two   B Three    C Four  D Five

小题3:What will the robot do after breakfast?

A Drive the writer to school.

B Read English with the writer.

C Go shoppping with the writer.

D Give the writer some advice.

单项选择题