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【单选题】
对数据对象施加封锁可能会引起活锁和死锁问题,避免活锁的简单方法是采用( )的策略。
A.
顺序封锁法
B.
依次封锁法
C.
优先级尚先服务
D.
先来先服务
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举一反三
【单选题】–Hi. How is it going?   --__________.
A.
I don’t like it
B.
It is going to school
C.
Not bad
D.
I’m fine
【简答题】阅读理解。 Tomorrow is Sunday. I'm not going to work. I'm twenty-two. My little brother isn't going to school. He is ten years younger than I am. I'm going to do some shop- ping. My brother is going to do ...
【单选题】防止建筑构建因热胀冷缩发生裂缝或收到破坏而设置的是
A.
伸缩缝
B.
沉降缝
C.
抗震缝
【单选题】— Where are you going this evening? — _____________________ [     ]
A.
I'm going to the cinema.
B.
I'm going by train.
C.
I'm going with my aunt and uncle.
【单选题】---Aren’t you going to buy that house?  It’s modern. ---Yes , it is . But I’m afraid I can’t ____such an expensive house
A.
spare
B.
share
C.
spend
D.
afford
【单选题】---- Hey. Look where you are going! ---- Oh, I’m terribly sorry ____.
A.
I’m not noticing
B.
I wasn’t noticing
C.
I haven’t noticed
D.
I don’t notice
【单选题】采集血标本哪项说法是错误的
A.
血清标本应避免震荡防止溶血
B.
全血标本采集后注入抗凝管轻摇匀
C.
血气分析需加盖抗凝管
D.
严禁从输血针头处采血
E.
做二氧化碳结合力测定用普通抗凝管测定结果偏高
【单选题】与其他单纯游记文相比,《都江堰》的一个重要特色是
A.
生动地讲述历史故事
B.
把人生经历融入到自然描写之中
C.
严谨地描述地理环境
D.
具有较强的象征意味和思辨色彩
【判断题】我国精准扶贫围绕“一有(有稳定收入来源)、两不愁(不愁吃、不愁穿)、四保障(教育、住房、医疗、养老有保障)”的目标而精准规划。
A.
正确
B.
错误
【单选题】—Hey, look where you are going! —Oh, I'm terribly sorry______.
A.
I'm not noticing
B.
I wasn't noticing
C.
I haven't noticed
D.
I don't notice
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