Which of the following statements about correctness proofs is false?
A. Proofs are important where human lives are at stake.
B. Proofs are important where indicated by cost-benefit analysis.
Correctness proving is sufficient and no other testing is required.
D. The claims that software engineers do not have adequate mathematical training, proving is too expensive to be practical and proving is too hard are oversimplifications.
E. All of these statements are false.
查看答案
"Stored test cases that the product has previously executed must be rerun to ensure that the modifications made to add new functionality to the product have not destroyed the product's existing functionality".This statement is a description of:
A. configuration management
B. regression testing
C. proof of correctness
D. formal testing
E. robustness
When does testing stop?
A. when the product is retired
B. when the product is put into production
C. when it passes muster by the SQA group
D. when it is passed after acceptance testing
肺泡通气量=[潮气量-()]×呼吸频率
A. 补吸气量
B. 补呼气量
C. 无效腔气量
D. 残气量
脑桥呼吸调整中枢的主要功能是()
A. 促使吸气转为呼吸
B. 促使呼气转为吸气
C. 减慢呼吸频率
D. 使吸气时程延长
微信支付 
支付宝支付