在802.1W里,根端口如果失败后,后继的端口是().
A、指定端口
B、阻塞端口
C、备份端口
D、替代端口
参考答案:D
— My son failed to be accepted by the firm after the interview.
— Now that he wasn’t well prepared, he might as well ______.
A.not try
B.not to have tried
C.not to try
D.not have tried
说明密封风机的作用、密封风压的保护定值及密封风的系统布置。