單項(xiàng)選擇題
A.2~4萬km B.3~5萬km C.4~6萬km
A.0.93MQ B.0.63MQ C.0.83MQ
A.l.l~1.5mm B.1.2~1.6mm C.1.3~1.7mm
A.1min B.2min C.3min
A.1OmA B.20mA C.30mA
A.15-35mm B.25-45mm C.35-55mm
A.250±50Pa B.350土50Pa C.400土50Pa
A.1.1 B.1.5 C.1.8 D.2.1
A.600g B.700g C.800g
A.15000km B.12000km C.14000km
A.3~6s B.4~7s C.5~8s
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