A-A+
What is One-Call？A．A telecommunications firmB．
问题详情
What is One-Call？
A．A telecommunications firm
B．An excavating company
C．A contractor
D．A pipeline detection safety service
参考答案
正确答案：D
解析：One-Call is the service that individuals call in order to locate pipelines before digging. Choice (A) associates call with telecommunications. Choice (B) associates excavating with digging. Choice (C) is who should call One-Call before digging.
