箱形电阻炉。
主要用途是（）
A.口腔修复件加温
B.口腔修复件铸圈加温
C.型盒加温
D.去蜡
E.充塞聚合
参考答案：B
We have some houses. But we need _____ . [ ]
A. more many
B. another many
C. many another
D. many more
骨盆骨折最危险的并发症是（）
A.盆腔内出血
B.膀胱破裂
C. * * 断裂
D.骶丛神经损伤
E.髋臼上缘
