题目内容
In earlier researches on the newborn’s perception, scientists ________.
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Passage Three：Questions 31 to 35 are based on the following passage.Priscilla Ouchida’s “energy-efficient” house turned out to be a horrible dream. When she and her engineer husband married a few years ago, they built a $100,000, three-bedroom home in California. Tightly sealed to prevent air leaks, the house was equipped with small double-paned (双层玻璃的) windows and several other energy-saving features. Problems began as soon as the couple moved in, however. Priscilla’s eyes burned. Her throat was constantly dry. She suffered from headaches and could hardly sleep. It was as though she had suddenly developed a strange illness.
Experts finally traced the cause of her illness. The level of formaldehyde (甲醛) gas in her kitchen was twice the maximum allowed by federal standards for chemical workers. The source of the gas？ Her new kitchen cabinets and wall-to-wall carpeting.
The Ouchidas are victims of indoor air pollution, which is not given sufficient attention partly because of the nation’s drive to save energy. The problem itself isn’t new. “The indoor environment was dirty long before energy conservation came along,” says Moschandreas, a pollution scientist at Geomet Technologies in Maryland. “Energy conservation has tended to accentuate the situation in some cases.”
The problem appears to be more troublesome in newly constructed homes rather than old ones. Back in the days when energy was cheap, home builders didn’t worry much about unsealed cracks. Because of such leaks, the air in an average home was replaced by fresh outdoor air about once an hour. As a result, the pollutants generated in most households seldom build up to dangerous levels.
第31题：It can be learned from the passage that the Ouchidas house ________.
对合同文件中的通用合同条款、专用合同条款、中标通知书、投标函及投标函附录来说，如有不明确或不一致之处，其优先次序描述正确的是（）。
如图 3 所示，某人在第 1~4 年每年末存人 100 元，到第五年年末取出，那么如果年利率为 8％，计息周期为年，第五年年末他共能取出金额约为()。
从尽可能地减少城市垃圾容积的角度考虑，垃圾处理与处置方法的选择顺序是（）。
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