题目内容

While A(remembering) mainly B(for) the invention of the telephone, Alexander Graham Bell devoted his life C(to) D(helping the deaf).

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Paul suggested that A(they meet) B(in the front) of the school gate C(at) one oclock D(Friday afternoon).

向旅游投诉处理机构请求保护合法权益的投诉时效期为_____天。

应该如何处理()

A. 重新穿刺
B. 按揉局部血管
C. 提高输液瓶
D. 调整针头方向
E. 热敷局部血管

麻花钻的结构特点，导向作用好、()

A. 结构简单
B. 排屑容易
C. 打孔速度快
D. 打孔省力