When does a transaction complete?()
A. when a DELETE statement is executed
B. when a ROLLBACK command is executed
C. when a PL/SQL anonymous block is executed
D. when a data definition language (DDL) statement is executed
E. when a TRUNCATE statement is executed after the pending transact io
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接地装置巡视主要分为()
A. 定期巡视
B. 故障巡视
C. 特殊巡视
D. 以上都不对
在中断请求有效并开中断状况下,能否保证立即响应中断?有什么条件?
请叙述中断响应的CPU操作过程,为什么说中断操作是一个CPU的微查询过程?
斜导柱抽芯机构安装定模板锁楔时,要保证楔斜面与滑块斜面的()面积紧贴。
A. 70%以上
B. 50%~70%
C. 40%~60%
D. 90%以上