题型:选择题 —What can we do to prevent (避免)being ill?—We should do more exercise and eat a ________ diet to take good care of ______.A.balanced; usB.balance; ourselfC.balanced; ourselvesD.balancing; our 查看答案
题型:单项选择题 关于骨肉瘤,下列哪项是错误的().A.好发于股骨下端和胫骨上端干骺端B.局部肿胀疼痛,有时表现类似急性炎症C.摄片可见骨质破坏,骨膜下新骨形成和日光放射状阴影D.一经摄片诊断,应即行高位截肢术E.近年来,随着早期诊断和化疗的进展,5年后存率可达50% 查看答案