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【判断题】
块体运动本质上是地表夷平作用的一种形式,是一个自然过程,非人力所能改变。人类能做的是利用工程手段,进行“空间”与“时间”性的避让和滞后。A.
正确
B.
错误
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举一反三
【单选题】Firms that use computers have found that the number of staff __________ is needed for quality control can be substantially reduced.
A.
whose
B.
as
C.
what
D.
that
【简答题】单桌或小型西餐宴会可在( )进行面包、黄油服务。
【单选题】When firms exit a monopolistically competitive industry:
A.
the average total cost curves of remaining firms will shift upward.
B.
the demand curves of remaining firms are decreased at each level of output.
C.
the remaining firms will decrease production.
D.
the average revenue received by remaining firms will increase at each level of output.
【单选题】Firms use the money they get from a sale to
A.
pay wages to workers.
B.
pay rent to landlords.
C.
pay profit to the firms’ owners.
D.
All of the above are correct.
【单选题】以下符合基因工程技术理念的是()
A.
根据人们需求，将人的T淋巴细胞与肿瘤细胞进行融合，获得杂交瘤细胞中包含淋巴细胞的抗性基因
B.
天然存在的噬菌体侵染大肠杆菌，并将其自身DNA融入到大肠杆菌基因组中
C.
用射线照射大肠杆菌，使其DNA序列发生改变，并产生新的性状
D.
将鱼的抗冻蛋白基因转入植物中获得抗寒的植物品系
【单选题】When firms use symbols, colors, or characters to convey their personalities, they are using ________ differentiation.
A.
image
B.
people
C.
usage-rate
D.
user-status
E.
channel
【单选题】The passage suggests which of the following about the use of temporary employment by firms during the 190's?
A.
It enabled firms to deal with fluctuating product demand far more efficiently than they before the 1980's.
B.
It increased as a result of increased participation in the workforce by certain demograp groups.
C.
It was discouraged by government-mandated policies.
D.
It increased partly as a result of workers' reduced ability to control the terms of their employment.
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