开合跳时,膝关节沿脚尖方向屈,膝关节夹角不得小于()度。
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What other thing were invented in ancient China _______ the compass(指南针)?
A. except
B. apart for
C. except for
D. besides
The telephone, which _______ by Bell in 1876, was a great improvement on the telegraph.
A. wasinvented
B. has invented
C. has been invented
There are in China over fifty nationalities(民族)_______ the Hans.
A. except
B. besides
C. except for
以下程序的输出结果是( )#includevoid fun(int x, int y, int z){ z=x*x+y*y; }void main(){ int a=31;fun(5,2,a);printf("%d",a); }
A. 0
B. 29
C. 31
D. 无定值