青年士兵消化性溃疡发病多见于<2年兵龄、北方籍入伍、全训单位的士兵；

The attack of peptic ulcer is more common among the young soldiers who are from the north area of China and have been in the army for less than 2 years.

youdao

青年士兵消化性溃疡发病多见于<2年兵龄、北方籍入伍、全训单位的士兵；

The attack of peptic ulcer is more common among the young soldiers who are from the north area of China and have been in the army for less than 2 years.

youdao