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单选题：Questionsare based on the passage you have just heard.
- 题目分类：英语六级
- 题目类型：单选题
- 查看权限：VIP
With the development of spread—spectrum technique，WE may use
With the development of spread—spectrum technique，WE may use BIuetooth connectio
It is difficult to make sure that Bluetooth and its connecte
It is difficult to make sure that Bluetooth and its connected devices don’t inte
石菖蒲的功效是（ ）
石菖蒲的功效是（ ）
治疗寒闭神昏的首选药物是（ ）
治疗寒闭神昏的首选药物是（ ）
甲亢患者用抗甲状腺药物治疗，维持阶段约需（ ）
甲亢患者用抗甲状腺药物治疗，维持阶段约需（ ）