单选题 The machines in this workshop are not regulated ______ but are jointly controlled by a central computer system.
A. inevitably B. individually C. irrespectively D. irregularly

【正确答案】 B
【答案解析】只有individually表示“单独地”。inevitably意为“不可避免地”：irrespectively意为“不考虑；不顾”：irregularly意为“不定期地”。