病历摘要：患者男性，29岁，汽车司机。3小时前因两辆车相撞，上腹部被方向盘撞伤，出现腹部剧烈疼痛被救护车送入院。

手术后应如何护理病人？（）提示：全麻下行剖腹探查，手术中可见：腹腔内血性液400ml，胃体可见一“T”型全层破裂，长约8cm，行胃破裂修补、腹腔引流术。

A.术后即给予有效半卧位

B.禁食，胃肠减压

C.维持体液平衡

D.吸氧

E.严密观察病人生命体征

F.保持腹腔引流管通畅

G.常规给予止痛药缓解疼痛

H.积极防治感染

I.并发症的观察

J.腹部体征的观察

In your construction project, the CPI is 1.30 and SPI is 0.85. What could be the potential reason

A) A critical resource went on sick leave for a long period of time, which had not been anticipated earlier.
B) The Cost of raw materials required for construction increased 10%.
C) You had not taken into account inflation rate.
D) There was 4 days waiting time in the curing of cement, and work could not be done during that time.