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【单选题】
为对象设置运动延时,应该调节?
A.
Rotation
B.
Zoom
C.
Delay
D.
Distortion
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A.
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B.
错误
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A.
100%
B.
99%以上。
C.
98%以上。
D.
95%以上。
E.
90%以上。
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A.
computers are only machines, while managers are humans
B.
computers can't think
C.
computers can't individually solve problems or make decisions both
D.
B and C
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A.
replace
B.
take
C.
do
D.
build
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A.
replace
B.
speciality
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A.
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B.
从电源中性点引出专用保护线 PE ,中性线 N 与保护线 PE 在电源中性点分开之后,二者不再相连的 TN 系统称为 TN-S 系统
C.
TN-C 系统在当三相负载不平衡时,工作零线上会有电流,对地有电压
D.
当 TN-C 系统中相线发生碰地短路时,保护中性线 PEN 上的电压会升高
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