下列哪项不是月骨缺血坏死的X线征象()
A.密度增高,有时可见囊性变
B.关节面不规则裂隙
C.外形不规则,体积增大
D.囊性变,周边硬化
E.附近骨质疏松
参考答案:C
With Father's Day around the corner, I have taken some money out of the bank ________ presents for
my dad.[ ]
A.buy
B.to buy
C.buying
D.to have bought
地面气象观测工作中的观测项目,均按全国统一规定的方法和要求开展。()