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【判断题】
对称中心为一点的称之为轮对称。
A.
正确
B.
错误
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【简答题】Because winter was (approach) , the weather was colder and colder.
【单选题】根据产品市场普及率来判断生命周期的方法叫做
A.
曲线判断法
B.
经验判断法
C.
销量增长率判断法
D.
销量增长率变化率判断法
【简答题】什么是计算机语言?简述计算机语言的发展阶段
【判断题】一、下列图形中是角的在( )内画“√”,不是的画“×”。
A.
正确
B.
错误
【单选题】—I heard they went skiing in the mountains last winter. —It true because there was little snow there.
A.
may be not
B.
won’t be
C.
couldn’t be
D.
mustn’t be
【多选题】Those colony's first winter was hardship, because________.
A.
they arrived too late to farm.
B.
half of them died from disease.
C.
they starved.
【简答题】请简述,什么是脱机输入输出方式,可以用自己的语言描述
【单选题】— I heard they went skating in the mountains last winter. — It _____ true because there was little snow there.
A.
may not be
B.
won’t be
C.
couldn’t
D.
mustn’t be
【单选题】— I heard they went skiing in the mountains last winter. — It ___ true because there was little snow there.
A.
may not be
B.
won’t be
C.
can’t be
D.
mustn’t be
【单选题】安装、送货、保证、提供信贷、售后服务等属于( )产品层。
A.
核心
B.
附加
C.
形式
D.
潜在
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