Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
数字喉记波扫描判断起音方式
a：硬起音发声方式；b：非硬起音发声方式。
