问题 单项选择题

关节附近骨折,骨膜剥离形成较大骨膜下血肿、机化、钙化后可致()

A.脂肪栓塞 

B.缺血性骨坏死 

C.缺血性肌挛缩 

D.创伤性关节炎 

E.骨化性肌炎(损伤性骨化)

答案

参考答案:E

解析:

关节扭伤、脱位及关节附近的骨折,尤其是肱骨髁上骨折,若处理不当,致使局部出血过多,积血剥离骨膜并渗入受损的肌纤维间,血肿机化后,逐渐转变为钙化骨,导致疼痛,关节功能严重障碍。称为损伤性骨化(骨化性肌炎)。

阅读理解
 LOOK! This is the Shanghai-Hangzhou high-speed (高速的) train. It started
 running on October 26. It goes at a speed of 350 km an hour. It is faster than
the usual high-speed train. Before, it took one hour and 18 minutes to get from 
 Hangzhou to Shanghai. Now, it takes only 45 minutes. People feel like they are
flying when they ride the train. The price of the ticket is 156 yuan for a
first-class seat and 98 yuan for second-class.
 The pictures in a book can move! Can you believe it? The first 3D storybook
comes out in Finland. It looks the same as other children's books. But it has
small black squares on some pages. When you put a webcam (网络摄像头)
on it, the computer shows 3D pictures. They look like real life things.
Children
have a lot of fun reading in 3D!
 The 1.58-meter-tall robot HRP-4C can sing and dance. Made by Japanese,
HRP-4C has 38 motors (发动机) in her face and body so she can walk, smile
and move her arms.

1. We can find these three short passages by _____.
    A. reading newspapers
    B. listening to music programs
    C. watching travel programs
2. You can save _____ minutes by taking the Shanghai-Hangzhou high-speed train.
    A. 45
    B. 33
    C. 26
3. The underlined sentence in Part 2 tells us _____.
    A. the 3D storybook can move
    B. the 3D storybook has a webcam
    C. the 3D storybook is different from other books
4. From Part 3 we can learn that _____.
    A. Robot HRP-4C has 58 motors
    B. Robot HRP-4C was made in China
    C. Robot HRP-4C is as tall as a real person
单项选择题