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【单选题】
设$X$为随机变量，其样本空间为$\Omega={{0}\le{X}\le{2}}$，记事件$A=\big\{0.5<{X}\le{1}\big\}$，$B=\big\{{0.25}\le{X}<1.5\big\}$，，则事件${\big\{{0.25}\le{X}\le{0.5}\big\}}\cup{\big\{1<X<1.5\big\}}$等价于以下哪个事件？A.
$\overline{AB}$
B.
$\overline{{A}\cup{B}}$
C.
$\bar{A}B$
D.
${\bar{A}}\cup{B}$
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
下列哪种账务处理程序适用于规模较小,经济业务量较少的单位（ ）
A.
科目汇总表财务处理程序
B.
原始凭证账务处理程序
C.
记账凭证账务处理程序
D.
汇总记账凭证财务处理程序
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$\frac{1}{\sqrt{3}}$
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$\frac{1}{2}$
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$-\frac{1}{2}$
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A.
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B.
The real-world applications call for rocketing memory storage 实际应用对存储的需求急剧增长
C.
The silicon used for producing chips is soon running out 用于制造内存芯片的硅资源消耗殆尽
D.
The physical size of memory chips is getting smaller thanks to the advances in technology 随着工艺的进步，内存的体积变小，集成度变高
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正确
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错误
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1/5
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2/5
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1/2
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3/5
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A.
Follow the lecture closely and look for opportunities to ask relevant questions.
B.
Pretend you’re fully prepared and listen carefully
C.
Ask people around for help
D.
Record all the lecture and learn it later by yourself
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$1$
B.
$\frac{3}{4}$
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$\frac{4}{3}$
D.
$-1$
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正确
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错误
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A.
having more babies
B.
having babies with genetic modification
C.
eliminating genetic diseases in newborns
D.
innovating in the field of life science
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A.
生产力
B.
频度
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持续时间
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强度
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