99.CRH2型动车组二级检修作业绝缘测量辅助回路SC200A到大地间应≥( )。[222040101]
A.(A)0.4MΩ
B.(B)0.3MΩ
C.(C)0.2MΩ
D.(D)0.1MΩ
正确答案是D