抽提停工时降温速度一般为（）。
A、30℃／ｈ
B、60℃／ｈ
C、不限制
参考答案：A
By 16:30, was almost closing time, nearly all the paintings had been sold.
A．which
B．when
C．what
D．that
论述固态法白酒生产的特点？
