She used to work as the Finance Director at another television company.
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Though the skills needed to work in the finance world are similar, it’s still not easy to move from sector to sector.
A. 对
B. 错
食品保存在冰点以下即为冷冻保藏,一般温度为-18℃。
A. 对
B. 错
酒精消毒的最佳浓度为70-75%。
A. 对
B. 错