题目内容

在数字微波的中继系统中,也利用对带限信号进行()的方法提取位同步信号。

A. 滤波
B. 包络检波
C. 鉴频
D. 混频

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安全生产监督管理部门和负有安全生产监督管理职责的有关部门逐级上报事故情况,每级上报的时间不得超过()小时。

A. 1小时、
B. 2小时
C. 3小时
D. 4小时

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A. 国际海事组织
B. 国际安全组织
C. 海事管理机构
D. 船籍港

You have enabled resumable space allocation in your database by setting the RESUMABLE_TIMEOUTparameter set to a nonzero value.Which three statements about resumable space allocation are true? ()(Choose three.)

A. Even with resumable space allocation enabled for your database, you can disable resumable space allocation for a single session.
B. A resumable statement is suspended only if an out of space error occurs.
C. When a resumable statement is suspended, the transaction that contains the statement is also suspended.
D. A resumable statement can only be suspended and resumed once during the execution of the statement.
E. You can query the V$SESSION_WAIT dynamic performance view to identify the statements that are suspended for a sessio

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