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

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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

exchange

interchange

communication

correspondence

Giải thích

Đáp án C

A. exchange (n): trao đổi

B. interchange (n): trao đổi

C. communication (n): sự giao tiếp

D. correspondence (n): thư từ

=> two-way communication: sự gia tiếp hai chiều