脑内多发海绵状血管瘤与转移瘤鉴别的主要依据（）
A.肿瘤部位
B.肿瘤大小
C.肿瘤密度
D.有钙化
E.瘤周水肿
参考答案：D
His _____of the aeroplane was correct in every detail and could really fly.
A．shape
B．pattern
C．design
D．model
简述现场骨折急救的正确处理方法。
