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It is He who sends down rain from the sky: from it ye drink, and out of it (grows) the vegetation on which ye feed your cattle. 10 He causes to grow for you thereby herbage, and the olives, and the palm trees, and the grapes, and of all the fruits; most surely there is a sign in this for a people who reflect. 11 And He hath subjected for you the night and the day and the sun and the moon, and the stars are subjected by His command. Verily therein are signs for a people who understand. 12 And whatsoever He has created for you on this earth of varying colours [and qualities from vegetation and fruits, etc. (botanical life) and from animal (zoological life)]. Verily! In this is a sign for people who remember. 13 It is He who subjected to you the sea, so that you may eat its fresh seafood and bring forth from it ornaments to wear. You see the ships cleaving through it. All this, so that you may seek His bounty and feel grateful. 14 And He has set up on the earth mountains standing firm, lest it should shake with you; and rivers and roads; that ye may guide yourselves; 15 and He has set other landmarks in the earth. And by the stars too do people find their way. 16 Is He who creates as he who does not create? Will you not remember? 17 And if you would count the graces of Allah, never could you be able to count them. Truly! Allah is Oft-Forgiving, Most Merciful. 18 Allah knows all that you conceal and all that you disclose. 19 Those whom they call upon beside Allah have created nothing; rather, they themselves were created; 20 (They are) dead, not living. And they know not when they will be raised. 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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