【判断题】传染病的流行过程是传染病在人群中发生、蔓延及终止的过程,它的发生必须具备传染源、传播途径和疾病爆发三个基本环节。( )
【单选题】from one phase are usually reviewed for completeness and accuracy and approved before work starts on the next phase.
【判断题】____传染病流行具备传染源、传播途径及易感的动物三个条件,这三个条件同时存并相互联系时就会造成传染病的发生。P42
【判断题】传染病流行过程必须具备三个基本环节,即传染源、传播途径及传染病人。
【判断题】____传染病流行具备传染源、传播途径及易感的动物三个条件,这三个条件只要存在一个即可造成传染病的发生。P42
【单选题】The review for the specification completeness is performed during which of the following cycles.
【单选题】● (66) from one phase are usually reviewed for completeness and accuracyand approved before work starts on the next phase.
【单选题】Software maintenance is to do necessary modification, supplenemt, and completeness during software life circle. Among the following vary kinds of maintenance, which one has the maximum workload in a g...
B.
completeness maintenance
C.
correctness naintenance
D.
other kinds of maintenance