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【简答题】
双绞线在制作时,直通线对两端线序的要求是_________________________,交叉线对两端线序的要求是___________________。
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【单选题】Dave asks "Ready to order?" What does he mean?
A.
He has their food ready.
B.
He will take their order now.
C.
He is ready to close the Rock.
【单选题】win the competition, she devoted herself to getting ready for it.
A.
So as to
B.
In order that
C.
In order to
D.
So that
【单选题】Are you ____________ to order? [     ]
A.
want
B.
make
C.
ready
【简答题】多媒体课件是以( )为中心,集文字、图像、声音、视频、动画等多种形式于一体,将难以用语言表述的教学内容,通过直观演示、实时操作、人机交互等多种方式展示给学生,进而提高( )和( )
【简答题】求下列各公式的主析取范式和主合取范式: 1 、(P→Q) ∧ R
【单选题】能够将【路径】面板中的工作路径转换为选区的快捷键是
A.
Ctrl+Enter
B.
Ctrl+E
C.
Ctrl+T
D.
Ctrl+V
【单选题】如图,将一块含有30°的直角三角板的顶点放在直尺的一边上,若∠1=48°,那么∠2的度数是( )
A.
48°
B.
78°
C.
92°
D.
102°
【简答题】求下列各公式的主析取范式和主合取范式: P → Q 。
【单选题】Is the food in fast food restaurants always ready before the customers order it?
A.
Yes,it is.
B.
N0,it is seldom ready.
C.
Yes,it is cooked to order.
D.
N0,not always,but usually.
【简答题】求下列各公式的主析取范式和主合取范式: ( 「 P → Q) ∧ (R ∨ P) 。
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