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【单选题】
The UNDO_RETENTION parameter in your database is set to 1000 and undo retention is not guaranteed. Which statement regarding retention of undo data is correct？（）A.
Undo data becomes obsolete after 1，000 seconds.
B.
Undo data gets refreshed after every 1，000 seconds.
C.
Undo data will be stored permanently after 1，000 seconds.
D.
Committed undo data would be retained for 1，000 seconds if free undo space is available.
E.
Undo data will be retained in the UNDO tablespace for 1，000 seconds，then it gets moved to the TEMPORARY tablespace to provide read consistency.
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【多选题】心脏叩诊的注意事项包括( )。
A.
病人仰卧位时，评估者叩诊板指与病人的肋间平行
B.
叩诊时用力均匀
C.
先叩心脏左界，再叩右界
D.
由上向下，由外向内叩诊
E.
移动板指时不要牵拉病人的皮肤
【简答题】Listen to the dialogue, then complete the summary. Mr. Jackson works in the___1___ with a good ____2__. As his old car is too old to be worth ____3___, he would like to have a ____4_____ one. Since he...
【简答题】HTTP协议属于___________层，UDP协议属于___________层，IP协议属于___________层，CSMA/CD协议属于___________层，集线器属于____________层。
【单选题】患者女性，29岁，因“右上后牙咬物不适6个月”来诊。口腔检查：右上6远深龋，叩痛（+），探痛（-），松动（-），牙龈正常，右上7金属全冠修复，叩痛（-），探痛（-），松动（-）。若拟用牙胶棒加热法对患者右上后牙行热测试，注意事项不包括（）
A.
为避免牙胶粘于牙面应使牙面保持湿润
B.
装有心脏起搏器的患者不应做此检查
C.
在牙面上停留的时间不应超过5秒
D.
将牙胶棒的一端于酒精灯上烤软时，注意控制温度，防止烫伤患者
E.
若热测试时引起患牙剧烈疼痛，应立即给予冷刺激以缓解患者的症状
【简答题】A. only the manager can handle new accountsB. The manager is away from the bank.C. The woman can’t open new accounts now.D. The woman is too busy to open an account for the man.
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