个人PKI证书管理中不得出现()情况
A.私自借出
B.盗用他人证书
C.恶意使用证书
D.专人专用
参考答案:A, B, C
-Thanks a lot for your book. I found it very interesting.
-_______. I’m glad you enjoyed it.
A.All the best
B.It is nothing
C.No thanks
D.Very well.
重金属检查法中,若以硫代乙酰胺作显色剂,溶液最适的pH值是( )。
A.3~3.5 B.4~4.5C.5~5.5 D.6~6.5E.7~7.5