病变区骨膜呈放射形,在肿瘤突破骨膜处,可见骨膜三角影,考虑为()。
在行为金融理论中,()导致投资者不能根据变化了的情况修正增加的预测模型。
Most European and Indian languages ______.
A. will soon die out completely
B. were once a relative of English
C. are no longer spoken
D. come from the same family
【B11】
A. a living
B. a difference
C. the way
D. the best