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问题 percent of后面的名词前到底用不用定冠词

下面两个表达我都见过：30 percent of money30 percent of the money30 percent of people30 percent of the peoplepercent of后面的名词前到底用不用定冠词?

问题 as后面接动词ing是作什么成分

Xi envisioned the development and application of AI as greatly enhancing the level of economic and social development and improving public services and urban management.这个句子里的as作什么成分？是什么意思？为什么as后面是接动词的ing形式（enhancing和improving.）？

问题 怎么理解that is

...一个问题Research has found that IQ predicted leadership skills when the tests were given under low stress conditions，but under high stress conditions，IQ was negatively correlated with leadership—that is, it predicted the opposite.这个句子中的that is怎么理解，前面句的...

问题 为什么是动名词而不是现在分词做定语

The request has raised the prospect of regulators wading into early-stage tech markets.这句里的"wading into early-stage tech markets"为什么是动名词而不是现在分词做定语啊

问题 关于过去分词单独使用的疑问

...我在赵俊英的《现代英语语法》中看到这么一个例句：【The children, exhausted, fell asleep at once. 孩子们由于过度疲劳立即就入睡了。】书上说这里的exhausted是过去分词作原因状语的用法。请问过去分词作原因状语时，可以单独一个...

问题 right与rightly在选择题中的区别

—He hit me!—It serves you ______. You shouldn’t have been rude to him. A. right    B. rightly请问如何选？同时请老师说说 right 与 rightly 的区别，谢谢！

问题 名词后的不定式是作定语还是作状语的区别

Do you have a permit to park here? 请问这里不定式是定语还是状语? 如果是状语，叫什么状语？谢谢专家！

问题 三个名词可以连在一起吗（carbon electrode materials）

Carbon electrode materials with high electric conductivity are required to accommodate more electrolyte ions.这个句子中carbon electrode materials 这三个名词可以充当一个主语吗？可以连在一起吗？

问题 when从句的分析与理解——状语从句还是定语从句（非常难）

We are interested to see photos of my mother when she was young.请问这里的when引导的是什么从句？定语从句？状语从句？好像都不是，因为找不到被它修饰的词语。求教专家！

问题 关于宾语从句的问题（涉及what,that）

You have to figure out what feeling underlies your anger.请问下这里what引导宾语从句吗？还是省略了that，what作feeling 的宾语呢？如果是 what引导的宾语从句的话，为什么后面的主谓宾都完整，不缺宾语。又比如下面这句对吗？You should figure ou...

问题 As much as has been achieved 用法疑问

As much as has been achieved in connection with globalization, there are much more to be done.这里的as much as看似用作即是，但他是不是缺了主语？

问题 时间状语by now的谓语动词时态

"Wasn't Joan supposed to be here by now ?""Don't worry, she'll be here in about twenty minutes." (TOEFL)既然是时间状语by now，为什么前面使用了一般过去时Wasn't呢？我不能理解。是否应该改成Isn't呢？望老师答疑解惑，谢...

问题 六级阅读长难句翻译2

...  in comparable  sales  can  be  attributed  to shortfalls  in cold-weather goods这段话怎么理解，特别是“in comparable  sales ”、“ in cold-weather goods”。

问题 句末的副词altogether 究竟如何翻译出来，含义和作用是什么？

Some US lawmakers want to suspend requirements that oil companies blend ethanolin their gasoline altogether.句末的副词altogether 究竟如何翻译出来，含义和作用是什么？

问题 高考题 质疑 四小时的路程（涉及连字符、所有格、单复数等）

...on/22691摘录如下：下面一题出自2004年的上海春季高考题：The village is far away from here indeed. It’s ______ walk.A. a four hour    B. a four hour’s    C. a four-hours    D. a four hours’答案是D。 我的疑问是，我觉得D项的a是多余的，比如，《...