Long noun clusters are not easy to understand because the words in the noun cluster can connect to each other in different way,长名词串不容易理解，因为名词串中的单词可以以不同的方式相互连接。
A.It is quite easy to understand long noun clusters because the words in the noun cluster have close relationship between each other. B.It is difficult to understand long noun clusters because the words in the noun clusters can be connected to each other in different ways. C.It is quite sure that long noun clusters are fairly hard to understand because the words in the noun cluster are related to each other in the same way.正确答案B
