一般来讲,优化不但要对网络的()进行优化,还要对()进行优化。
参考答案:工程参数;无线参数
股骨头缺血坏死病程进入晚期,MR信号为()
A.长T1、长T2
B.长T1、短T2
C.短T1、长T2
D.短T1、短T2
E.等T1、等T2
Certificates are (16) documents attesting to the (17) 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 (18) someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a certificate also contains an (19) date, the name of the CA that issued the certificate, a serial number, and perhaps other information. Most importantly, it contains the digital (20) 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.
A.text
B.data
C.digital
D.structured