列检所在更换轮对的限度按（）掌握。
A、运用限度
B、辅修限度
C、段修限度
参考答案：C
— I heard that the famous player ________ his coach would come to our school for a visit.
— I heard the news ________.[ ]
A. and; too
B. as well as; as well
C. as well as; as well as
D. with; either
光缆敷设要求，光缆的弯曲半径应至少为光缆外径的（）倍。
A.5
B.8
C.10
D.15
