职工应当参加职工基本医疗保险，由用人单位和职工按照国家规定共同缴纳基本医疗保险费。
our database is in the MOUNT state and you execute the following command to open it： ALTER DATABASE OPEN What two actions are performed as a result of this command？（） All control files are opened.。 All redo log files are opened。 The password file is opened.。 The parameter file is opened.。 All online data files are opened.。
压，绝对压力，大气压的关系（） p表压＝p绝－p大。 p绝＝p大－p表。 p大＝p表－p绝。
Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process？（） open the database with the RESTRICTED option。 open the database with the RESETLOGS option。 recover to the required SCN only that data file in which the error occurred。 recover all the data files to the same system change number （SCN）。
下述试验方法中，属于粒度成分分析的试验是（） 沉降分析法。 标准贯入试验。 搓条法。 原位压缩试验。
在拟建工程任务十分紧迫、工作面允许以及资源保证供应的条件下，可以组织（）
