[填空题] All over the world men are 【B1】 new techniques to provide mass housing, inexpensively and quickly, for millions of low-and middle-income families, and 【B2】 the urgent housing 【B3】 brought on by such natural disasters 【B4】 floods and earthquakes. A firm in Hatfield, Pennsylvania, the Universal Papertech Corporation, believes it has found one solution 【B5】 the problem: houses 【B6】 paper. The ultimate success of the paper houses will 【B7】 a great deal on breaking 【B8】 traditional patterns and concepts of home building and restrictive codes. One thing seems certain, 【B9】: the shelter revolution is already 【B10】. The concept of paper houses was developed 【B11】 10 years ago by Universal. Six years ago the company supplied 【B12】 the then—current models 【B13】 emergency housing for thousands of migratory farm workers in California. 【B14】 the houses were new on the market, no one really knew just how long the unusual structures would 【B15】 Today, in California 【B16】 still holding
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