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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.特七也真没乱动，就这么盯着毛海峰，一言不发。The advantages of the state mode are as followsFujian风雨交加的晚上，豪华酒店盛大的生日宴会上发生了一起骇人听闻的命案，医生周敏在洗手间被杀害。破案的希望落在当晚唯一目击证人—陈子含身上。公安局内，子含指认出闭路电视上的疑凶-安云。同时意外得悉这位素未谋面的女子竟然与自己的男友---医生徐克勤有染；基于证人与疑凶的私人瓜葛，队长李龙彪决定另觅破案线索。子含受到袭击，幸而得到安云的救援，捡回一命，安云和子含的关系日益亲密，让徐克勤感到恐惧。徐克勤被子含打入了冷宫，他认为是安云在从中作梗，气愤地来到安云家。翌日，医院主任医师徐克勤坠楼自杀未遂成了植物人。伤者身边发现了遗书，供认了自己因为欠下巨额赌债而盗买医院麻醉药品，供制毒组织制造毒品的罪行……