A.150~1950mm B.200~2000mm C.100~1800mm D.250~1900mm
A.100N B.120N C.130N D.150N
A.截止相當(dāng)于開關(guān)接通 B.放大相當(dāng)于開關(guān)接通 C.飽和相當(dāng)于開關(guān)接通 D.截止相當(dāng)于開關(guān)斷開,飽和相當(dāng)于開關(guān)接通