a pile of piles of后面加可数名词,那可以不可数吗?

a pile of和piles a pile of piles of后面加可数名词,那可以不可数吗? piles of和 a pile of有区别吗?后面谓语动词要不要复数? a whole pile of There are ___ paper in the workroom.A.a piece of B.a pile of C.piles of D.a lot of 英语翻译The reduction factor is affected by many parameters,such as the pile diameter,elastic modulus of piles,pile depth,soil types and properties,loading conditions,etc.A simplified reduction factor that ignores the effect of soil and pile cond 书桌上有堆书there are a pile of books on the desk为什么不能写成there are piles of books on the desk piles of与a lot of的区别 a pile of ,后接什么 a pile of hay什么意思 SAT数学怎么写Bob has a pile of poker chips that he wants to arrange in even stacks.If he stacks them in piles of 10,he has 4 chips left over.If he stacks them in piles of 8,he has 2 chips left over.If Bob finally decides to stack the chips in on 英语翻译When the shrinkage reaches a certain extent,it will have a great effect on the adjacent solidifying piles and make the solidifying concrete of one pile flow in another drilling hole with the soil. ACM博弈问题,求给思路Problem DescriptionAliceand Bob are playing a game.There are two piles of cards.There are N cards in each pile,and each card has a score.They take turns to pick up the top or bottom card from either pile,and the score of t 求 a stack of 和 a pile of 区别 a portion of a series of a pile of a panel of 的用法 问三道英语奥数题1. There are three piles of apples. the apples in the first pile is half more than the apples in the second piles and the apples in the third is one quarter less than in the first pile. the total number of these apples is 2900 下面的英语词组写个句子a pile of it is a pile of toys on the