讲授法
参考答案:讲授法:教师运用口头语言系统地向学生传授知识的方法,可分为讲述、讲读、讲解三种方式。
免疫耐受容易发生于
A.应用外源性抗原B.应用颗粒性抗原C.应用适当量抗原D.口服免疫E.皮下免疫
Certificates are (71) documents attesting to the (72) of a public key to an individual or other entity. They allow verification of the claim that a given public key does in fact belong to a given individual. Certificates help prevent someone from using a phony key to (73) someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a Certificate also contains an (74) date, the name of the CA that issued the Certificate, a serial number, and perhaps other information. Most importantly, it contains the digital (75) of the certificate issuer. The most widely accepted format for certificates is X.509, thus, Certificates can be read or written by any application complying with X.509.
75()
A.signature
B.mark
C.stamp
D.hypertext