لعبة سرعة رد الفعل
مثال
Test your Response time!
Click on "Start" first, and wait until the background color changes. As soon as it changes, hit "stop!"
Change background color in:
deeppink
aliceblue
crimson
darkkhaki
cadetblue
darkorchid
coral
chocolate
mediumslateblue
tomato
darkslategray
limegreen
cornflowerblue
darkolivegreen
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