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两处致命，死的不能再死了。Play Bone Wu Daxiu"So to speak, But it was only later that we found out, At that time, the smell had just dispersed, At first it just smelled bad, Nothing special, But after a while, I found something was wrong. Anyone who smells this smell, Have severe dizziness and nausea discomfort, In a short time, someone couldn't help vomiting on the position. I smelled it only a few times, and then it was also painful to churn in my stomach. Not only was my stomach uncomfortable, but my eyes were also very swollen, as if I wanted to "earn" and open my eyes to "jump" out from the inside. At that time, I thought "broken". This was not the chemical weapons used by the Vietnamese army, was it? Looking back on the common sense of the field learned during the surprise study, remember that the Vietnamese army did not have chemical weapons that would cause similar reactions? However, at that time, I felt uncomfortable patronizing and did not think further.奥利弗伍德沃德的非凡真实故事。这是1916年，德沃德泪别他的年轻女友，从军前往西部前线，其间还要穿越德国阵地。德沃德和他的团队从事秘密隧道工事，铺设炸药。1917年6月17日，奥利弗伍德沃德和他的战友们用血泪换来的那场19分钟的爆炸造就了世界上有史以来最大的一次人工爆破，爆炸长度相当从伦敦延绵至都柏林……The simple understanding is that photometry is in charge of the light and shade distribution of the whole photo, with the central focus on photometry and uniform light and shade of the photo. The spot metering is more suitable for shooting the actors on the stage, that is, taking the actors as metering spots, and the photos taken are based on the brightness of the actors, rather than the shady scenes around the actors.9-3 User: Create a class named User, which contains the attributes first_name and last_name, as well as several other attributes that the user profile usually stores. Define a method named describe_user () in the class User, which prints a summary of user information; Then define a method called greet_user (), which sends personalized greetings to users.