表面麻醉是将渗透性强的局麻药与黏膜接触并穿透黏膜作用于（）而产生局部麻醉作用。
参考答案：神经末梢
I watched the man for a long time and wanted to know .
A．whether I have seen him before
B．where I had seen him before
C．that I had seen him before
D．when did I see him
公司应切实做到犹豫期内对个人新契约业务投保客户进行（）回访。
A、80%
B、100％
C、90%
D、85%
