________ the help of their group， we would not have succeeded in the investigation.
________ the help of their group， we would not have succeeded in the investigation.
A、Besides
B、Regardless of
C、But for
D、Despite
【正确答案】：C
【题目解析】：but for要不是 要不是他们那组的帮助,我们在研究中就不会成功.
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