关节活动正常值为0°~150°的是（ ）。
A. 肩关节外展
B. 肩关节前屈
C. 腕关节背屈
D. 肘关节屈曲
E. 前臂旋前
关节活动的正常值是0°~180°的是（ ）。
A. 肩关节外展
B. 肘关节屈曲
C. 腕关节背屈
D. 髋关节后伸
E. 膝关节屈曲
1.The passage is mainly about___________.
A. the life of Elvis
B. the history of American music
C.the development of rock and roll
D. the development of black African and the white European music
According to the passage, which of the following statements is NOT true?
A. It is not quite easy to tell how “rock and roll” began.
Both the blues and country music were developed by the musicians in the southern United States.
C. Both the Europeans and the African slaves came to America during the 17th century.
D. It was the blues songs recorded in Memphis that made Elvis Presley popular throughout the nation.
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