技术改造是企业通过对生产技术在原有基础上的局部改进和创新。
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某建设工程施工合同约定:工程无预付款,进度款按月结算,保留金按进度款的3%逐月扣留,监理工程师每月签发付款凭证的最低限额为25万元。经计量确认,施工单位第一个月完成工程款25万元,第二个月完成工程款30万元,则第二个月监理工程师应签发的付款金额为()万元。
A. 24.25
B. 29.1
C. 53.25
D. 55
What is the impact of the results of the output of the following command?() RMAN> report unrecoverable database; Report of files that need backup due to unrecoverable operations File Type of Backup Required Name 4 full or incremental C:\ORACLE\ORADATA\ORCL\USERS01.DBF
A. There are no backup sets with any backups of the users01.dbf datafile.
B. The users01.dbf datafile has had unrecoverable operations occur in it. It will need to be backed up or some data loss is possible during a recovery.
C. The users01.dbf datafile is corrupted.
D. The users01.dbf datafile backup exceeds the retention criteria.
E. The last backup of the users01.dbf datafile failed and must be rerun.
根据《2006海事劳工公约》,责任由公共当局承担,国家法律或条例可免除船东支付船上医疗费用及膳宿和丧葬费用的责任,包括()。 ①在船舶服务之外发生的其他受伤; ②在接受雇用时故意隐瞒的疾病或病症; ③受伤或患病是因患病、受伤或死亡海员的故意不当行为所致。
A. ①③
B. ①②
C. ②③
D. ①②③
男,45岁,既往有肺结核及哮喘反复发作史。半小时前上楼时,突发呼吸困难及右侧胸痛。查体:明显呼吸困难,发绀,端坐呼吸,大汗,烦躁,颈静脉充盈,气管轻度左偏,桶状胸;双肺叩诊过清音,右侧略带鼓音;右肺呼吸音低,左肺可闻哮鸣音。应进行何种检查才能确诊()
A. 肺功能
B. 血气分析
C. 胸部X线
D. 心电图
E. 胸部B超