The Tang Dynasty,which lasted from 618 through 907,was the most splendid period ofthe chinese history .(ps: which这里是定语从句，这个我知道，但是逗号后面的那句，was the most.......这个是同位语吗？定语从句能做同位语成分吗？谢谢！
If blood pressure falls in the vessels ofthe kidney, so that blood
flow diminishes, the kidney produces renin and discharges it into the blood.英语中不是不能只用逗号分隔独立句子吗，请问第三个分句前为什么没有连词（比如and）？或者是if、so that有什么特殊...
...社七年级上册英语P22和P33中两处主谓一致的问题:P22：A lofofice cream, hamburgers and colais not healthy.请问这里的be动词为什么选择的是is而不是are？P23:There are lots of fruit and vegetables for lunch at school.There be 句型遵循就近原...
The phenomenon provides a way for companies to remain globally
competitive while avoiding market cycles and the growing burdens imposed by
employment rules, healthcare costs and pension plans.在从句 while avoiding…plans 中，while 表示的应该是表并且的连词，但是从句里的动...
...t David Elkind,United Statessociety tends to push children so rapidly that they begin to feel stress and pressure at a young age. According to Elkind, not only does this cause the child emotional distress, it also fails to bring theintended cognitive gains.第2句的this指代什么？是push child...
...dow只有Tom一个人干了这件事我能否数说 Tom is a boy who broke the window.（无指称性）【这种情况下，我们会把Tom理解成是其中之一，但是我的意思不是其中之一，而是表示描述Tom是个什么样的boy】当然 Tom is the boy broke the window.没问题
The part ofthe brain responsible for fine control and movement is located in the left cerebral hemisphere, and the findings above suggest that the human brain was already asymmetrical in its structure and function not long after 2 million years ago.请问这里”not long after 2 million years ago...
Colleges also provide them exposure to a diversity of groups，which helps in increased cultural awareness. 老师，increased cultural awareness是个名词词组，与in 构成介词短语。
但是helps in后面的increased可以改成increasing吗，做动名词？
为什么increase...
...ue business
partners, especially considering he spent that time living out of his car and
eating meals begged from friends.想请教这句话，最后使用过去分词back的修饰前面名词meal，但beg在这里没有被动语义，是否应该使用现在分词begging代替？