皮皮学，免费搜题
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【单选题】
---It’s said that scientists are working hard to ________ a way to deal with H7N9 avian influenza(H7N9禽流感) ---Really? That’s great!A.
caught up with
B.
come up with
C.
agreed with
D.
compared with
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【简答题】用所给词适当形式填空 She swam there without any ______________. (protect)
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