在冷冻食品的各种解冻方法中，水解冻存在的问题有食品中的可溶性物质流失、食品吸水后膨胀、（）等。
参考答案：被解冻水中的微生物污染
—Mrs. Wang was sent to teach English in a poor mountain village last year.
—She said she would never forget some pleasant while working there.
A．experiments
B．expressions
C．experiences
D．emotions
进仓清理必须设专人监护，监护人一般不应少于2人
