AD166可以调节打印的缩放。
参考答案:错
加热炉点火点不着时或者点着又熄灭后应该()。
A.开大点煤气
B.关小点空气
C.关闭阀门
D.开小点煤气
The prices of beer_____ from 50 cents to $4 per liter during the summer season.[ ]
A. altered
B. ranged
C. separated
D. differed