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几道语法题目1.These proposals sought to plce greater restrictions

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几道语法题目
1.These proposals sought to plce greater restrictions on the use and copying of digital information than ___ in traditonal media.
a exist b exists c existing d to exist
答案 a 我选 c 我句子结构看不懂,意义也有点不明白
2.The quantity of books in the library __amazing
a has b have c is d are
答案d 我选 c quantity后啥时单数啥时复数啊?
几道语法题目1.These proposals sought to plce greater restrictions
1 这些建议旨在价格上相较于传统媒介进一步限制使用和拷贝数码信息的传统媒体 前边那个copy是动名词 而这个exist是动词 从语意思看是一直存在的传统媒体 应该用一般式
2 quantity of修饰可数或不可数名词均可,作主语时采取就近一致的原则,其谓语动词通常与短语中of后面的名词的数保持一致.例如:
A large quantity of beer was sold out.大量的啤酒被售出.
A large quantity of blouses were on sale.大量罩衫有售.
the quantity of后跟复数名词或不可数名词构成的短语作主语时,谓语动词通常用单数.例如:
The quantity of books in the library is amazing.图书馆里的藏书数量惊人.
The quantity of heat in the office has not been increased.办公室里的热量没有增加.
quantities of后跟复数名词或不可数名词构成的短语作主语时,谓语动词通常用复数.例如:
Quantities of food (nuts) were on the table.桌子上有许多食品(坚果).