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This is a simple and inexpensive process___________, there arc dangers.
A.However
B.Besides
C.Therefore
D.Thus
B.Besides
C.Therefore
D.Thus
参考答案
参考解析
解析：考查副词辨析。分析句子意思“这个过程简单且花费少，___________有危险”可知，空格前后的句子存在转折关系。however“然而，可是”，besides“此外；也”，therefore“所以，因此”，thus“因此；从而”。只有A项表示转折关系，符合题意。
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