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勤奋，向上。In addition, As Zhang Xiaobo said, On the front line at that time, Wearing or not wearing a helmet is a "choice", Because Vietnam is located in Southeast Asia, The climate is hot and humid, Helmets are heavy and airtight, Wearing it is very easy to cause heatstroke, Particularly in fast maneuvers, This is the easiest way to do strenuous activities such as running. Therefore, in order for the troops to fight more efficiently, There would be no mandatory order for everyone to wear a helmet, If you don't want to wear it, you can choose to wear a cloth cap with eaves. So in the vast majority of relevant historical photos, Among our troops participating in the war, The highest percentage of helmets is worn by artillery, It is mainly used to defend the fragments of enemy artillery and various hard objects brought up by explosions in artillery warfare. Even some border militiamen wore helmets in large numbers, On the contrary, the impact is at the forefront, Infantry units carrying out a large number of mobile combat missions are rarely worn, Investigate its reason, It is for the infantry troops to carry out large-scale interspersed operations frequently. Exercise is enormous, It is really inconvenient to wear helmets, This approach has both advantages and disadvantages, It is not good to judge right or wrong here, but when facing such a horrible "killer bee" on the ground on 149, it is regrettable and regrettable that the heavy casualties caused by the low wearing rate of helmets have to be said. If they had worn helmets instead of military caps like Zhang Xiaobo, the casualties caused by the sting attack of "killer bee" would have been much smaller.This is like subscribing to the "China Youth" newspaper in the post office for one year. If the post office has a new "China Youth" newspaper, it will deliver a new "China Youth" newspaper to your mailbox. If you don't subscribe to it in one year, then the post office won't send you newspapers.ABC官宣正式续订《神盾局特工》第六季！不过往季都有22集而本季却只有13集。香荽便哄小孩似的鼓励道：那你说说看，我听听对不对，省得误解了意思不好。《忠孝节义》，2017年文化部旗舰型电视剧补助的杨丽花歌仔戏，历经四年的前置筹备与拍摄，将于2019年9月24日在台视首播。Sockstress