未曝光的X射线胶片盒保存时应（）。
A、平放
B、直立
C、堆放
D、任意放置
参考答案：B
白果善于
A．燥湿利水B．托毒生肌C．消肿生肌D．固精止遗E．缩尿止带
The popularity of potatobased foods has ________ in fast food restaurants in the two decades.[ ]
A. elected
B. created
C. developed
D. boomed
