采用硫酸纸或锡膜包装、短期保存温度是0～4℃、长期保存温度是-10～-5℃、压炼黄油时应添加2％～3％的（），符合黄油加工贮存的要求。
参考答案：食盐
The boss believed Tom's reason for being late for work is ______ he had to help his grandma cook.
A．why
B．that
C．where
D．because he
跨国公司借助“参与制”以少量的自有资本控制他人的巨额资本。
