单选题 New technologies continue to be a driving force, as developments in satellites, digital video, and ______ multimedia that have yet to work their way into broadcast or cable are becoming essential to corporate TV operations.

【正确答案】 B
【答案解析】[注释]语句的含义有“互动性的”意思，不只是A“双方的”、D“双向的”和C“双边的”的意思。