什么是第二层隧道协议和第三层隧道协议,两者有什么不同?
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用“潜意识冲突假说”来解释异常心理的原因的理论模式为()
A. 心理动力学理论模式
B. 行为模式
C. 人本主义理论模式
D. 医学模式
货物委托书是接收货物的依据,但不是计算运费和签发运单的凭据。
A. 正确
B. 错误
运行转为备用或计划停运或1~4类非计划停运:以()时间为界。
A. 发电机与电网解列
B. 停机
C. 锅炉灭火
D. 解列高加
Which two statements are true regarding the SQL Repair Advisor?()
A. The SQL Repair Advisor can be invoked to tune the performance of the regressed SQL statements.
B. The SQL Repair Advisor can be invoked even when the incident is not active for a SQL statement crash.
C. The SQL Repair Advisor is invoked by the Health Monitor when it encounters the problematic SQL statement.
D. The DBA can invoke the SQL Repair Advisor when he or she receives an alert generated when a SQL statement crashes and an incident is created in the AD