--What's the time?
--______ half past nine. [ ]
A. Its
B. It's
C. This is
D. They're
答案:B
作抽屉试验时,患者出现向前移位1.2cm,提示()
A.前交叉韧带损伤
B.后交叉韧带损伤
C.外侧副韧带损伤
D.内侧副韧带损伤
E.关节内游离体
丙公司应按何种保证方式承担保证责任为什么