放射治疗不敏感的肿瘤是（）。
A.骨肉瘤
B.横纹肌肉瘤
C.尤因肉瘤
D.淋巴瘤
E.骨髓瘤
参考答案：A
Great changes __________ in China in the past few years.
A． were taken place
B． took place
C． have been taken place
D． have taken place
A．5A
B．5A
C．3.5A
D．3.5A
