永久气体是指临界温度小于（）℃的气体。 -40。 -20。 -10。 0。
You are maintaining your database in ARCHIVELOG mode. An important table， SCOTT.EMPLOYEE， is dropped and purged from the Recycle Bin on Monday at 2：00 P.M. You do not use RMAN to perform backups. You performed the last full user-managed backup at 9：00 P.M. on Sunday. How will you recover the dropped table， SCOTT.EMPLOYEE？（） by using the Flashback Table feature。 by using the Flashback Database feature。 by performing incomplete recovery using RMAN utility。 by performing incomplete recovery using user-managed recovery。
物价指数法中的物价指数可以是（）。 被评估资产的类别物价指数。 被评估资产的个别物价指数。 固定资产投资价格指数。 商品零售价格指数。 综合物价指数。
Examine the following command that is used to duplicate a database on the same host: RMAN> RUN { ALLOCATE AUXILIARY CHANNEL, aux 1 DEVICE TYPE DISK; DUPLICATE TARGET DATABASE TO auxdb SKIP READONLY; \ } Which two statements describe the effect after the database is duplicated successfully? （）(Choose two) The data files of the read-only tablespaces in the target database are not duplicated。 The read-only tablespaces in the target database are still defined in new the database。 The read-only tablespaces in the target database are changed to online after duplication。 The data files of the read-only tablespaces in the target database get duplicated。 The read-only tablespaces in the target database are not defined in the new database。
狭义上的纳税主体包括（）。 法律、行政法规规定负有纳税义务的单位。 法律、行政法规规定负有纳税义务的个人。 法律、行政法规规定负有代扣代缴、代收代缴税款义务的单位。 法律、行政法规规定负有代扣代缴、代收代缴税款义务的个人。
You are maintaining the database in Oracle10g. You are performing an incomplete recovery by using RMAN because an important table， EMPLOYEE， is dropped and purged from the Recycle Bin. Which statement is NOT true regarding an incomplete recovery？（）
