ZXUMS统一网络管理平台用户有两种认证方式登录系统()和()。
参考答案:密码认证、数字证书认证
光线从水中射入空气,在图上画出反射光线和折射光线的大致光路.
— When would it be for you to go to the science museum with me?
— I am free this Friday afternoon. Let’s meet at 2 p.m. at the school gate.
A.convenient
B.pleasant
C.necessary
D.familiar