汽水共腾的象征。水位表内水位剧烈地波动,甚至看不清水位;过热蒸汽温度急速下降;蒸汽管内有严重水击现象;饱和汽的含盐量或含水量急剧增大。( )
参考答案:对
It was _________ of the parents who hold the view that boys are superior to girls to treat their own little girl as a stranger.
A.athletic
B.cheerful
C.guilty
D.cautious
刀具功能可控制换刀和刀具补偿和换刀偏置。