脑栓塞治疗的原则正确的是（）
A.防治脑水肿
B.溶栓治疗
C.手术摘除栓子
D.根除栓子来源
E.控制脑水肿，并治疗原发病
参考答案：E
_______ an important role in a new movie, Andy has got a chance to become famous.[ ]
A. Offer
B. Offering
C. Offered
D. To offer
