在长句中有一个there 句,感觉很别扭,
A U.S.study published this month concluded there did not appear tobe any link,though it said more research was needed into the impact of long-term use of mobiles.
本月发表的一项美国研究的结论说,看来两者之间没有任何俩系,虽然它还说,需要对长期使用手机的影响进行更多研究.
疑问：there did not appear tobe any link
出现了一个 there 句,感觉很别扭,是不是什么特殊用法?