哪种加密方式是使用一个共享的密钥()
A.对称加密技术
B.非对称加密技术
C.HASH算法
D.公共密钥加密术
参考答案:A
A.To help the students appreciate the arts.
B.To make the students’ education more well-rounded.
C.To investigate the impact of arts training.
D.To enhance the students’ math skills.
当抢救者打开气道发现患者已无呼吸,此时应()
A.开始胸外按压
B.评估有无脉搏
C.口对口吹气
D.检查瞳孔
E.听心音