问题补充：
the fierce competition in finding a good job in big cities, many fresh graduates are trying their fortune in medium-sized cities like Wuhu City．
A. Regardless of
B. Apart from
C. Instead of
D. Due to
答案：
A. Regardless of
B. Apart from
C. Instead of
(答案→)D. Due to
解析：考查介词短语。A.不顾，不管；B.除了，除。。。。。。之外还；C.代替，而不是；D.由于，因为。
