Codman三角见于()。
A.骨结核
B.骨肉瘤
C.骨坏死
D.骨巨细胞瘤
E.骨软骨瘤
参考答案:B
The water ______ cool when I joined into the pool for morning exercise. [ ]
A. was felt
B. is felt
C. feels
D. felt
在讨论离合器压盘时,技师甲说压盘将离合器从动盘压在飞轮上,技师乙说压盘离开离合器从动盘后将使离合器从动盘停止转动,谁正确()
A、甲正确
B、乙正确
C、两人均正确
D、两人均不正确