题目内容
空气中热烟气所受浮力的方向为()。
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窑内气体的基本特征是()。
关于分散垂直气流法则说法正确的是()。
紊流粗糙区的沿程阻力损失与流速平方成正比?
His mind was ______ (1) in a body that didn't work. Speaking was difficult and took time. People were ______ (2) and didn't listen. He felt different was different from the kids who ______ ______ (3) in the halls and planned dances he would never attend.What could his ______ (4) be? Porter wanted to do some- thing and his mother was certain that he could_____ _____ ____ ____ (5). With her encouragement, he _____ _____ (6) a job with the Fuller Brush Co. only to be turned down. He couldn't carry a ______ (7) briefcase or walk a route, they said.Porter knew he wanted to be a salesman. He began reading help wanted ads in the newspaper. When he saw one for Watkins, a company that sold household products _____________ (8), his mother set up a meeting with a ______ (9). The man said no, but Porter wouldn't listen. He just wanted a chance. The man ____ __ (10) and offered Porter a section of the city that no salesman wanted.
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