下面属于黑盒测试方法的是( )。
A、基本路径测试
B、等价类划分
C、判定覆盖测试
D、语句覆盖测试
Which two operations can be performed on an external table()
ACreate a view on the table.
BCreate an index on the table.
CCreate a synonym on the table.
DAdd a virtual column to the table.
EUpdate the table using the UPDATE statement.
FDelete rows in the table using the DELETE command
患者,女性,70岁,突发剧烈心前区疼痛,胸闷,心界向左扩大,心尖区吹风样3/6级杂音,HR96次/分,双肺底可闻及湿啰音。ECG示Ⅰ、aVL、V5、V6导联ST段抬高,Ⅰ、aVL有病理性Q波,频发室性期前收缩。CK-MB升高。该患者的处理原则,下列哪项不对()
A、心电监护
B、消除恶性心律失常
C、减轻疼痛
D、抗凝治疗
E、扩容升压
患者,男性,68岁,心房颤动20年,服用地高辛控制心室率5年,近3天患者突然出现恶心、呕吐等消化道症状,饲时伴有心悸、头痛、头晕症状,视物模糊,查心电图:室性期前收缩二联律,该患者可能是发生了()
A、消化性溃疡
B、心绞痛
C、低血压
D、高血压
E、洋地黄类药物中毒
A bank wants to maximize the security of employee computer data displayed on their screen.Which of the following would BEST accomplish these goals?()
A、Keyboard filters
B、Privacy filters
C、Screensavers
D、Secure display drivers
通信管道、通道与污水、排水管的最小平行净距为()m。
A、2
B、1.5
C、1
D、0.5