脊柱侧弯矫形器的治疗目的不包括（）
A.稳定脊柱
B.控制脊柱侧弯
C.促进胸廓发育
D.矫正脊柱侧弯
E.改善平衡及外观
参考答案：C
The two high school students fought bravely against bad persons on the bus in Jiangxi
were highly praised.
A. who B. whom C. which
若有说明int a[3][4]；则下面属于a数组元素的非法引用的是( )。
A．a[0][2*1]
B．a[1][3]
C．a[4-2][0]
D．a[0][4]
