题目

In spite of these unexpected difficulties，those scientists________to carry out their experiments on the lonely island.Their findings were helpful to science. A．arranged                     B．managed C．offered                      D．demanded 答案：B　句意：虽然有意想不到的困难，但是那些科学家们还是设法完成了孤岛上的实验。根据句意，B正确，manage to do sth.“设法成功做了某事”。arrange“安排”；offer“提供”；demand“要求”。

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