The ability to achieve cost savings is inversely proportional to _____.
A.the earned value achieved to date
B.the estimated costs to complete
C.empowerment to the P.M.
D.productivity
E.None of the above.
第1题:
第2题:
3、查询平均成绩良好,也就是≥80分的考生人数,查询语句就可以写成()。
A.WITH avgach (eeid,avgachieve) AS (SELECT eeid,AVG(achieve) FROM eeexam GROUP BY eeid ) SELECT COUNT(*) FROM avgach WHERE avgachieve>=80;#B.WITH avgach (eeid,avgachieve) (SELECT eeid,AVG(achieve) FROM eeexam GROUP BY eeid ) SELECT COUNT(*) FROM avgach WHERE avgachieve>=80;#C.SELECT COUNT(*) FROM (SELECT eeid,avg(achieve) FROM eeexam GROUP BY eeid )AS avgach (eeid,avgachieve) WHERE avgachieve>=80;#D.SELECT COUNT第3题:
PID是比例、积分、微分的缩写 Proportional-Integral-Differential。
第4题:
查询平均成绩良好,也就是≥80分的考生人数,查询语句就可以写成()。
A.WITH avgach (eeid,avgachieve) AS (SELECT eeid,AVG(achieve) FROM eeexam GROUP BY eeid ) SELECT COUNT(*) FROM avgach WHERE avgachieve>=80;#B.WITH avgach (eeid,avgachieve) (SELECT eeid,AVG(achieve) FROM eeexam GROUP BY eeid ) SELECT COUNT(*) FROM avgach WHERE avgachieve>=80;#C.SELECT COUNT(*) FROM (SELECT eeid,avg(achieve) FROM eeexam GROUP BY eeid )AS avgach (eeid,avgachieve) WHERE avgachieve>=80;#D.SELECT COUNT第5题:
50、查询平均成绩良好,也就是≥80分的考生人数,查询语句就可以写成()。
A.WITH avgach (eeid,avgachieve) AS (SELECT eeid,AVG(achieve) FROM eeexam GROUP BY eeid ) SELECT COUNT(*) FROM avgach WHERE avgachieve>=80;#B.WITH avgach (eeid,avgachieve) (SELECT eeid,AVG(achieve) FROM eeexam GROUP BY eeid ) SELECT COUNT(*) FROM avgach WHERE avgachieve>=80;#C.SELECT COUNT(*) FROM (SELECT eeid,avg(achieve) FROM eeexam GROUP BY eeid )AS avgach (eeid,avgachieve) WHERE avgachieve>=80;#D.SELECT COUNT第6题:
3、HarmonyOS中的AMS全称是()
A.Activity管理服务
B.Activity管理系统
C.Ability管理系统
D.Ability管理服务