TCP/IP是一组______。
A) 局域网技术B) 广域网技术C) 支持同一种计算机(网络)互联的通信协议D) 支持不同种计算机(网络)互联的通信协议
参考答案:D
It is obvious that on no account _____ to the teacher that he has done the homework on his own.
A.this is the first time he is lying
B.this is the first time he has lied
C.is this the first time has he lied
D.is this the first time he has lied
为就业者安排合适工作,应作何种检查()
A.就业前健康检查
B.定期健康检查
C.健康监护
D.劳动能力鉴定
E.职业病检查