脾贫血性梗死的肉眼形态:()
A.梗死灶为灰白色
B.切面呈扇形或楔形
C.梗死灶尖向脾门,底向器官的表面
D.梗死灶周围有充血出血带
参考答案:A, B, C, D
病原生物
_____your composition carefully, some spelling mistakes can be avoided.
A.Having checked
B.Check
C.If you check
D.To check