單項(xiàng)選擇題
A.100ppm B.115ppm C.300ppm D.65ppm
A.負(fù)荷過高 B.噴頭轉(zhuǎn)速偏高 C.尿液溫度低
A.130.4 B.135 C.132.4
A.6 B.7 C.8 D.9
A.105 B.120 C.130 D.155