肠外营养本身引起的并发症A.低钾血症  B.锌缺乏  C.胆囊结石形成  D.血糖过

阅读理解。

根据下面短文内容，选择合适答案。

     George liked flying a plane. Once he bought a small plane and learned how to fly it. He soon became

so good that he could make his plane do all kinds of tricks(技巧).

      George had a friend. His name was Peter. One day George said to his friend. "Peter，would you

like to have a trip in my plane?" Peter thought. "I've traveled in a big plane several times，but I've never

been in a small one, so I'll go."

     They went up, and George flew around for half an hour and did all kinds of tricks in the air. When

they came down again, Peter was very glad to be back safely , and he said to his friend in a shaking voice(颤抖的声音), "Well, George，thank you very much for these two trips in your plane. "

     George was very surprised and asked, "Two trips?"

     "Yes, my first and my last."Answered Peter.

1. Peter _____ his friend's plane. 

    A. had to fly in 

    B. was asked to have a trip in 

    C. was asked to fly 

    D. asked George to fly

2. Peter went up with George in the plane because _____ . 

    A. he liked traveling very much 

    B. George was good at flying his plane 

    C. he had never traveled in a small plane 

    D. peter could do all kinds of flying tricks

3. They were in the plane for _____ minutes. 

    A. forty-five 

    B. sixty 

    C. thirty 

    D. some

4. How many times did Peter travel in his friend's small plane? 

    A. Once. 

    B. Twice. 

    C. Three times.

    D. Several times.

5. From the passage we know that _____ .

    A. Peter thanked George for the nice trip

    B. Peter thought it was wonderful to have such a trip

    C. Peter felt surprised that his friend could fly so well

    D. Peter was worried about his safety while George doing tricks in the sky

患者，女，13岁，上下牙拥挤Ⅲ°，安氏Ⅱ类上颌前突，骨性高角患者，ANB8°，下颌向前方的生长发育已相当有限。

在矫治过程中，要配合何种措施增加磨牙支抗 （）

A.高位口外弓牵引

B.颈带牵引矫治器

C.低位口外弓牵引

D.口外上颌前方牵引矫治器

E.头帽颏兜牵引矫治器

长期应用苯妥英钠的不良反应有（）

A.共济失调

B.齿龈增生

C.血小板减少

D.巨幼红细胞性贫血

E.眼球震颤

如果油泵排油压力偏低，则（）油压调节阀；若压力过高，则（）油压调节阀。

A.关小、开大

B.开大、关小

C.开大、开大

D.关小、关小

心理健康的“病与非病”的原则包括（）。

A.心理与环境的同一性

B.心理与行为的统一

C.情绪的直接表达

D.人格的稳定性