单项选择题
A.≤200W B.≤300W C.≤400W D.≤500W
A.AC110V B.AC110V±11V C.AC220V D.AC220V±22V
A.150mm±5m B.155mm±10mm C.160mm±10mm D.165mm±5mm
A.4s B.5s C.6s D.7s
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