红十字国际委员会已经成为当今世界最大且最具影响的非政府组织。
参考答案：对
下述哪项符合骨肉瘤性质（）
A.生长缓慢
B.X线摄片可见Codman三角
C.局部无发热，无静脉曲张
D.肿块活动，边缘清楚
E.关节临近骨端增大
I ___________ some clothes to charity because some people might need them. [ ]
A. gave up
B. gave in
C. gave away
D. gave back
