單項(xiàng)選擇題
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
A.250kPa B.300kPa C.350kPa
A.320kPa B.330kPa C.350kPa
A.230-250kPa B.240-260kPa C.250-270kPa
A.9kPa B.1OkPa C.11kPa
A.24 B.36 C.48
A.46% B.56% C.65%
A.500kw B.520kw C.530kw