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【判断题】
济南市的72泉属于天然涌泉。()A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Mr. Holland has a profound influence on his students. Many of them become better people with his help. Does Mr. Holland have a profound influence on his own son, too?
A.
Yes, because his son becomes a teacher too. So Mr. Holland sets a good example for his son.
B.
No, because Mr. Holland spends too much time on his work, neglecting his son.
C.
No, because Mr. Holland seldom communicates with his son, which leads to some misunderstanding between them.
D.
No, because his son once called him an asshole.
【单选题】”去色”命令的作用是 ( )
A.
将灰度或彩色图像转换为较高对比度的黑白颜色
B.
去除图像中的饱和色彩，将图像变成灰度图像
C.
将色彩的色调数减少，制作出色调分离的特殊效果
D.
以上说法都不对
【简答题】( )的作用是将彩色图像转换为灰度图像
【单选题】下列关于扫描仪工作原理的叙述，正确的顺序是（ ）。① 获得点的灰度值或色彩编码值；②将纸介质的图转换为一个数字信息阵列；③将图像变成一个点阵图形；④存入计算机的文件中使用相关软件进行显示和处理。
A.
①②③④
B.
①③②④
C.
③②①④
D.
③①②④
【单选题】Mr. Smith wants his children ______.
A.
to learn from Mr. Brown
B.
not to learn from Mr. Brown
C.
not to talk to Mr. Brown
【单选题】John was given the samesuitcase his father and grandfather ____ with them to school. 21
A.
took
B.
had taken
C.
weretaking
D.
would take 21
【判断题】Mr. Thrun and his group members built the first car to ever return from a DRAMA Grand Challenge with new software.
A.
正确
B.
错误
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