梗死灶的形状取决于( )。
A．坏死的类型
B．坏死灶的大小
C．梗死灶内的含血量
D．该器官的血管分布
E．以上都不是
参考答案：D
TYJL-Ⅱ型计算机联锁系统监控机死机的故障主要现象？如何处理？
In software engineering and systems engineering, ______ is a description of a system’s behavior as it responds to a request that originates from outside of that system.
A．blackbox
B．business rule
C．use case
D．traceability matrix
