题目内容
细集料的表观密度试验，以两次平行试验结果的算术平均值作为测定值，如两次结果之差值大于0.01g/gm3，应重新取样进行试验。()
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Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： Every human being, no matter what he is doing, gives off body heat. The usual problem is how to dispose of it. But the designers of the Johnstown campus of the University of Pittsburgh set themselves the opposite problem--how to collect body heat. They have designed a collection system which utilizes not only body heat, but the heat given off by such objects as light bulbs and refrigerators as well. The system works so well that no conventional fuel is needed to make the campus's six buildings comfortable.
Some parts of most modern buildings--theaters and offices as well as classrooms--are more than amply heated by people and lights and sometimes must be air-conditioned even in winter. The technique of saving heat and redistributing it is called "heat recovery". A few modern buildings recover heat, but the University's system is the first to recover heat from some buildings and reuse it in others.
Along the way, Pitt has learned a great deal about some of its heat producers. The harder a student studies, the more heat his body gives off. Male students emit more heat than female students. It is tempting to conclude that the hottest prospect for the Johnstown campus would be a hard-working male genius.
(16)
是指使用联运提单，经美国西海岸和美国湾沿海港口，利用集装箱拖车或铁路运输将货物运至美国内陆城市。
本批货物最多能交（）公吨。
3岁女孩，正常排尿后仍有滴尿现象，站立或活动后滴尿更加严重，但睡眠后阴部不潮湿。
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