【单选题】In the software life cycle, the most expensive stage to modify defects is:
A.
requirement analysis stage
【单选题】Hofstede’s _____ index measures the extent to which the less powerful members of organizations and institutions (like the family) accept and expect that power is distributed unequally.
【判断题】当供给发动机的可燃混合气体较稀(即空燃比大于14.7或过量空气系数大于1 )时,排气中氧离子含量较多,一氧化碳浓度较小。