男,55岁,腰骶部隐痛3月余,近期大小便困难,结合影像学检查,最可能的诊断是()
A.骨巨细胞瘤
B.骨转移瘤
C.脊索瘤
D.骨脓肿
E.骨肉瘤
参考答案:C
The order is that all the goods _____ to the city on time.
A.ship
B.shipped
C.be shipped
D.are shipped
板框压滤机后的清液进入()
A、溶液循环槽
B、溶液缓冲槽
C、低位放空槽