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It is He who sends down rain from the sky; from it is drink and from it is foliage in which you pasture [animals]. 10 and thereby He brings forth for you crops, and olives, and palms, and vines, and all manner of fruit. Surely in that is a sign for a people who reflect. 11 And He has made subservient for you the night and the day and the sun and the moon, and the stars are made subservient by His commandment; most surely there are signs in this for a people who ponder; 12 And what He has created in the earth of varied hues most surely there is a sign in this for a people who are mindful. 13 And He it is who has made the sea subservient [to His laws,] so that you might eat fresh meat from it, and take from it gems which you may wear. And on that [very sea] one sees ships ploughing through the waves, so that you might [be able to] go forth in quest of some of His bounty, and thus have cause to be grateful [to Him]. 14 And He has placed firm mountains on the earth lest it should move away from you, and has made rivers and tracks that you may find your way, 15 And landmarks; and by the stars they find the right way. 16 Is He, then, who creates like him who does not create? Will you not, then, take heed? 17 Even if you wanted to count up all of God's blessings, you would not be able to. God is All-forgiving and All-merciful. 18 God knows all that you conceal and all that you reveal. 19 Now those beings that some people invoke beside God cannot create anything, since they themselves are but created: 20 they are dead, not living, and they do not [even] know when they will be raised from the dead! 21
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ملاحظات وتعليمات
Notes and Instructions
كيف تعمل منظومة تمارين الحفظ؟ عند أدنى مستوى 0، تكون كل الكلمات ظاهرة. بينما يُخفي أعلى مستوى 9 كل الكلمات. فكيف تعمل المستويات المتوسطة، مثل 3، على سبيل المثال؟ قد تعتقد بأن المنظومة تخفي 3 من كل تسع كلمات بدقة. ليس تماما! في المستوى 3، لكل كلمة فرصة اختفاء بنسبة 3 من 9، و6 من 9 لتكون ظاهرة. بمعنى آخر، من الممكن، ولكن باحتمال شبة معدوم، أن تكون جميع كلمات المستوى 3 مخفية، أو أن تكون جميعها ظاهرة! وكذلك أيضًا، ففي المستويات المتوسطة، وبما يتناسب مع مستوى الصعوبة، يمكن أن تكون المخابئ غير كاملة أو شفافة جزئيًا بحيث تظهر الكلمات جزئيًا تحتها.
How does the memorization exercise algorithm work? At the lowest level 0, all words are visible. While the highest level 9 hides all words. What about at mid-level, like 3, for example? You might think that the algorithm hides precisely 3 out of every nine words. Not quite! At level 3, each word has a 3 out of 9 chance to hide, and 6 out of 9 to be visible. In other words, it is possible, but highly unlikely, for all words at level 3 to be hidden, or, that all of them to be visible! Also, at mid-levels, and in proportion to the difficulty level, hideouts can be partially incomplete or transparent so that words may be partially visible underneath.
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