题目内容
（请给出正确答案）
A、nominal variables and real variables.
B、nominal variables, but not real variables.
C、real variables, but not nominal variables.
D、neither nominal nor real variables.
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更多“【单选题】According to classical ma…”相关的问题
第1题
A．extend the average and maximum lifespan
B．be useful to test Dr Rattan's hypothesis
C．cure some diseases related to aging
D．be taken to study their side effects
第2题
A．the cultures we have
B．the way we think
C．the technological advances
D．the subjects we are studying
第3题
A. Patrick was made a partner of the firm.
B. The partners agreed to have the money transferred.
C. Patrick had access to all the files in the firm.
D. Bogan decided to hire Patrick nine years earlier.
第4题
A．some governments are unwilling to support expensive recycling methods
B．there is a lack of advanced technology to process the materials
C．businesses do not invest enough money into research
D．people don't like waste things
第5题
A．the emerging differences in the global protest movement.
B．the disappearing differences in the global protest movement.
C．the growing European concern about globalisation.
D．the increase in the number of protesters.
第6题
A．The majority of the students in the two schools found it acceptable to pay a bit more to eat their lunch from paper trays.
B．Scientific evidence indicates that polystyrene can seriously break down the protective ozone layer of the atmosphere.
C．The Board of Education changed its decision immediately after Vogt and her classmates presented their findings to it.
D．The Board of Education at last voted and decided to change to paper trays in these two schools from February 1, 1989.
第7题
A．The monetary systems in both countries are fiat systems.
B．Both countries have some managed elements in their monetary systems.
C．Gold is not allowed to be used for any reasons in the two countries.
D．Both countries forbid currency to be freely converted into gold.
第8题
A．it fails to describe space on a non-local level, complicating attempts to determine the geometrical model of the universe
B．it cannot account for the possibility that the universe may be multiply- connected instead of singly-connected
C．it yields inconsistencies in spatial topology equations, discriminating unnecessarily between the torus and the plane
D．it creates the illusion that observable space is curved, when in fact the universe may be Euclidean and planar
E．it does not provides sufficient variety in geometrical models to describe all the possible ways in which space may curve
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