胶原敷料不具备的优点是（） A.蛋白质来源丰富 B.生物相容性好 C.良好的吸水性

以下关于甲状腺血供的描述中，错误的是（）

A.甲状腺上动脉起源于颈外动脉

B.甲状腺下动脉起自锁骨下动脉

C.甲状腺上静脉汇入颈内静脉

D.甲状腺中静脉汇入椎静脉

E.甲状腺下静脉汇入无名静脉

结核性脑膜炎早期表现（）

A.性格改变，呕吐、便秘

B.低热、剧烈呕吐、头痛

C.面神经瘫痪

D.昏睡、定向障碍

E.昏迷、惊厥

When I was in the third grade, I was picked to be the princess(公主）in the school play. For weeks my mother had helped me practice my lines. But once on stage, every word disappeared from my head. Then my teacher told me she had written a narrator's（解说者的）part for the play, and asked me to change roles. Though I didn't tell my mother what had happened that day, she sensed my unhappiness and asked if I wanted to take a walk in the yard. 

It was a lovely spring day. We could see dandelions(蒲公英）popping through the grass in bunches, as if a painter had touched our landscape with bits of gold. I watched my mother carelessly bend down by one of the bunches. "I think I am going to dig up all these weeds, "she said. "From now on, we'll have only roses in this garden. "

"But I like dandelions, "I protested. "All flowers are beautiful-even dandelions!"

My mother looked at me seriously. "Yes, every flower gives pleasure in its own way, doesn't it?" she asked thoughtfully. I nodded. "And that is true of people, too, " she added. 

When I realized that she had guessed my pain, I started to cry and told her the truth. 

　　“But you will be a beautiful narrator, ”she said, reminding me of how much I loved to read stories aloud to her. 

Over the next few weeks, with her continuous encouragement, I learned to take pride in the role. The big day finally came. A few minutes before the play, my teacher came over to me. “Your mother asked me to give this to you, ”she said, handing me a dandelion. After the play, I took home the flower, laughing that I was perhaps the only person who would keep such a weed. 

小题1:The girl did not play the role of the princess mainly because . 

A．she felt nervous on the stage.

B．she lost her interest in that role.

C．she preferred the role of the narrator

D．she had difficulty memorizing her words小题2:Why did the mother suggest a walk in the garden?

A．To remove the dandelions

B．To enjoy the garden scene

C．to have a talk with her daughter.

D．to help her daughter with the play.小题3:What is the main idea of the story?

A. Everybody can find his or her own way to success. 

B. Everybody has his or her own value in the world. 

C. Everybody should learn to play different roles

D Everybody has some unforgettable memory. 

在船舶机械中采用（）监控可以有效地诊断故障、降低维修费用和提高轮机员技术水平.

A.振动分析

B.监测装置和监测系统

C.图示法

D.油液监测

根据《中华人民共和国民法通则》，法人不应具备的条件是( )。

A．依法成立
B．有自己的名称、组织机构和场所
C．有必要的财产或者经费
D．不能独立承担民事责任