Two-way (1) _ depends on having a coding system that is understood by both sender and (2) _, and an agreed convention about signaling the beginning and end of the message

2/67

Two-way (1) _______ depends on having a coding system that is understood by both sender and (2) _______, and an agreed convention about signaling the beginning and end of the message

announcer

receiver

messenger

transmitter

Giải thích

Đáp án B

A. announcer (n): người thông báo

B. receiver (n): người nhận

C. messenger (n): người đưa tin

D. transmitter (n): người truyền tin