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Scientists are trying to       

来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/07/17 19:05:06
Scientists are trying to          ways to treat the terrible disease called H7N9.
A．come up with B．give in C．talk about D．give up
A


阅读理解。      Scientists(科学家) are trying to ......   , .,.  -)  ...  ..  】  ..- - -   ；    />