局麻药的局部麻醉作用是通过其阻止动作电位所必需的何种离子内流（）
A.Na+
B.K2+
C.Ca+
D.Cl-
E.H+
参考答案：A
声门型喉癌T3说明肿瘤（）。
The old photo____ me____ my happy childhood, which was spent in a small village with my
grandparents. [ ]
A. reminds; to
B. remembers; of
C. reminds; of
D. remembers; to
