A scientist who does research in economic psychology and who wants to predict the way in which consumers will spend their money must study consumer behavior. He must obtain (1) both on resources of consumers and on the motives that (2) to encourage or discourage money spending.
If an (3) were asked which of three groups borrow most -- people with rising incomes, (4) incomes, or declining incomes -- he would (5) answer: those with declining incomes. Actually, in the years 1997 -2000, the answer was: people with rising incomes. People with declining incomes were next and people with stable incomes borrowed the (6) . This shows us that tradition- al (7) about earning and spending are not always (8) Another traditional assumption is that if people who have money expect prices to go up, they will (9) to buy. If they expect prices to go down, they will postpone buying. (10) research surveys have shown that t
A. real
B. true
C. actual
D. genuine
| For over 30 years, Donald Kroodsma has
worked to disclose such mysteries of bird communication. Through field studies
and laboratory experiments, he’s studied the ecological and social forces that
may have contributed to the evolution of vocal learning. Kroodsma
has paid particular attention to local variation in song types, known as
dialects. The Black-capped Chickadees (Parus atricapillus)on Martha’s Vineyard,
for example, have an entirely different song than their counterparts on the
Massachusetts mainland, he says. Birds that live on the boundary between two
dialects or that spend time in different areas can become "bilingual," learning
the; songs of more than one group of neighbors. Recently, Kroodsma discovered
that the Three-wattled Bellbird (Procnias tricarunculata) is constantly changing
its song, creating what he calls a [单选题]LNG 操作人员因 PPE 穿戴不齐全不慎发生低温冻伤后,应将冻伤人员冻伤 部位放入水中进行加热的最佳水温范围是( )。
A.30-43℃的热水中 B.0-3℃的热水中 C.60-80℃的热水中 D.80-100℃的热水中 [单选题]人体每日摄入的( ),应占进食总热量的10~15%。
A.蛋白质 B.脂肪 C.糖类 D.水 [多选题]各地( )及水源等情况的不同,灾害形式及特点也存在着明显的地区差异。3 易
A.经济条件 B.城市环境 C.气候条件 D.地质地貌 [单项选择]内科医生王某，在春节探家的火车上遇到一位产妇临产，因车上无其他医务人员，王某遂协助产妇分娩。在分娩过程中，因牵拉过度，导致新生儿左上肢臂丛神经损伤。王某行为的性质为
A. 属于违规操作，构成医疗事故 B. 属于非法行医，不属医疗事故 C. 属于超范围执业，构成医疗事故 D. 属于见义勇为，不构成医疗事故 E. 虽造成不良后果，但不属医疗事故 [判断题]每一缔约国必须确保商业航空运输运营人不载运未登机人员的行李，除非对该行李经过了适当检查。
A.正确 B.错误 我来回答: 提交
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