單項(xiàng)選擇題

測(cè)量前兆歐表進(jìn)行一次開(kāi)路,短路試驗(yàn)時(shí)()

A.開(kāi)路指針應(yīng)指“~”,短路指針應(yīng)指“0”
B.開(kāi)路指針不指“~”,短路指針不指“0”
C.開(kāi)路指針應(yīng)指“~”,短路指針不指“0”

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