脑栓塞的治疗原则为()。
A.改善循环、减轻脑水肿和预防脑疝
B.预防脑栓塞再发
C.改善循环、减轻脑水肿,并治疗原发病
D.外科手术摘除栓子
E.应用抗生素,防止并发症
参考答案:C
In China ______ graduates go abroad to have a further study every year .
A.a great deal of
B.many a
C.masses of
D.a plenty of
腔内治疗可用于那些肿瘤的治疗()
A.鼻咽癌
B.乳癌
C.食道癌
D.宫颈癌
E.原发性肝癌