描述信息系统逻辑模型的主要工具是( )。
A.业务流程图和数据流程图
B.组织机构图和业务流程图
C.数据流程图和数据字典
D.系统流程图和数据字典
参考答案:C
汗证的辨证要点为 ()
A.辨阴阳虚实
B.辨病变脏腑
C.辨病程阶段
D.辨愈后转归
E.辨原发病
Survival craft EPIRBs (Class S) are().
A.permanently mounted in the survival craft
B.portable and stowed for carriage to the survival craft
C.permanently mounted on the bridge wings
D.portable and stowed in the emergency gear locker