（）为财务费用。 ["保险费","利息净支出","差旅费","工资"]
You want to make sure that your database backup does not exceed 10 hours in length. What command would you issue that would meet this condition?（） ["backup database plus archivelog","backup database plus archivlog until time ‘10:00‘","backup database plus archivelog timeout ‘10:00‘","backup database plus archivelog duration 10:00"]
为了解决从动轴瞬时角速度变化的问题，不能使用下列（）。 ["高精度凸缘式联轴器","齿轮式联轴器","成对万向联轴器","十字滑块式联轴器"]
Which two commands never trigger an implicit rebalancing within the disk group?（） (Choose two.) [" ALTER DISKGROUP misc MOUNT;"," ALTER DISKGROUP misc DROP DISK misc2;"," ALTER DISKGROUP misc CHECK ALL NOREPAIR;"," ALTER DISKGROUP misc RESIZE ALL SIZE 1023m;"," ALTER DISKGROUP dgroupA ADD DISK '\/devices\/A*'"]
金先生，52岁。十二指肠溃疡25年，上腹部隐痛1年，近1个月又出现呕吐，吐隔夜宿食，呕吐逐渐加重；精神状态差，消瘦明显，皮肤弹性差，贫血貌；胃镜检查确诊为十二指肠溃疡并幽门梗阻。决定近期行胃大部切除术。特殊的术前准备是（） ["术日晨插胃管","术前肌内注射阿托品","术前3d起每晚用温生理盐水洗胃","术前一晚肥皂水灌肠","术前禁饮食"]
锅炉的通风方式有（）、（）、（）、（）。离心式风机主要由（）、（）、（）、（）和（）等构件组成。
