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【单选题】
设有事务 T1 和 T2 ,其并发操作顺序如下图所示。该并发操作带来的问题是( )。 T1 T2 1 READ (A) 2 READ (A) 3 A=A+1 4 WRITE (A) 5 READ (A)验证A.
丢失更新
B.
不可重复读
C.
读了“脏数据”
D.
写错误
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举一反三
【单选题】下列经营成本计算正确的是
A.
经营成本=总成本费用－折旧费－利息支出
B.
经营成本=总成本费用－摊销费－利息支出
C.
经营成本=总成本费用－折旧费－摊销费－利息支出
【单选题】My history teacher would often compel us to do useless work, such as memorizing the date each state entered the union.
A.
to help
B.
to forbid
C.
to force
D.
to emphasize
【单选题】关于JavaScript说法正确的是()。
A.
JavaScript与Java语法完全一样
B.
JavaScript一般用于在网页上实现数据校验及特效等
C.
JavaScript要运行必须安装Java运行环境
D.
JavaScript可用于开发windows应用程序
【单选题】关于JavaScript说法正确的是:( )
A.
JavaScript与Java语法完全一样
B.
JavaScript要运行必须安装Java运行环境
C.
JavaScript一般用于在网页上实现数据验证及特效等
D.
JavaScript可于开发Windows应用程序
【单选题】听力原文：M: Did you see the list of books for this course? W: Yes,the teacher expects us to get the first five on the list. M: Are you going to buy them? W: I don't know. These books are expensive. And I ...
A.
Four.
B.
Five.
C.
Six.
D.
Seven.
【简答题】下列经营成本计算正确的是（ ）。
【单选题】关于JavaScript说法正确的是:( )
A.
JavaScript可于开发Windows应用程序
B.
JavaScript与Java语法完全一样
C.
JavaScript一般用于在网页上实现数据验证及特效等
D.
JavaScript要运行必须安装Java运行环境
【简答题】I worried about my personal image and how I could be remembered during my boyhood.In the fifth grade,there seemed to be only one 1 —to be cool.In the sixth grade,suddenly,there were two choices:be coo...
【单选题】The teacher told us that light ____ much faster than sound. [ ]
A.
travels
B.
traveled
C.
would travel
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