问题：
【名词解释】流体静力学
答案：
流体力学的一个分支，研究静止流体（液体或气体）的压力、密度、温度分布以及流体对器壁或物体的作用力（如题图）。[听力原文]36-46 The automobile has many advantages. Above all, it (36)offers people freedom to go where they want when they want to. To most people, cars are also personal (37) fantasy machines that serve as (38) symbols of power, success, speed, excitement, and (39) adventure. In (40) addition, much of the world’ s economy is built on producing vehicles and supplying roads, services, and repairs of vehicles. Half of the world’s paychecks are (41) auto-related. In spite of their advantages, motor vehicles have many harmful effects on human lives and on air, water, land and wildlife resources. Though we (42) tend to deny it, (43) riding in cars is one of the most dangerous things we do in our daily lives. Every year, (44) cars and trucks worldwide kill an average of 250,000 people, and they injure or permanently disable ten million more. (45) Half of the world’ s people will be involved in an auto accident at sometime in their lives. Motor vehicles are the largest sources of air pollution, producing a haze of smog over the world’ s cities. (46) In some countries, they produce at least 50% of the countries’ air pollution.offer sb．sth．给某人提供某物，不要错当成affords负担得起，该词一般与 can/could或can’t/couldn’t连用。