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单项选择题

直流电机的电枢绕组若为单叠绕组，则绕组的并联支路数将等于（）。
A、主磁极数
B、主磁极对数
C、2
D、

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高层建筑基础工程的商品混凝土宜优先选用下列哪一种水泥( )?
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测量锅炉汽包液位时，暴露在蒸汽中的电接点因电阻率较低，浸没其中的电接点的两电极被导通，相应的显示灯为亮。（ ）
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The term “quality of life” is difficult to definE.It (51) a very wide scope such as living environment, health, employment, food, family life, friends, education, material possessions, leisure and recreation, and so on. (52) speaking, the quality of life, especially (53) seen by the individual, is meaningful in terms of the degree (54) which these various areas of life are available or provide (55) for the individual.
As activity carried (56) as one thinks fit during on e’s spare time, leisure has the following (57): relaxation, recreation and entertainment, and personal development. The importance of these varies according to the nature of one ’s job and one’s life stylE.(58), people who need to (59) much energy in their work will find relaxation most (60) in leisurE.Those with a better education and in professional occupations may (61) more to seek recreation and personal development (E.g.(62) of skills and hobbies) in leisurE.The specific use of leisure (63) from individual to individual.
(64) the same leisure activity may be used differently by different individuals. Thus, the following are possible uses of television watching, a (65) leisure activity, a change of experience to provide (66) from the stress and strain of work; to learn more about what is happening in one ’s environment; to provide an opportunity for understanding oneself by (67) other people ’s life experiences as (68) in the programs.
Since leisure is basically self-determined, one is able to take (69) his interests and preferences and get (70) in an activity in ways that will bring enjoyment and satisfaction.
51_____
A.composes
B.consists
C.covers
D.constitutes
52A.Basically
B.Frankly
C.Primarily
D.Generally
53A.when
B.as
C.while
D.which
54A.to
B.as
C.of
D.in
55A.satisfaction
B.information
C.respect
D.admiration
56A.out
B.through
C.away
D.off
57A.effects
B.operations
C.functions
D.features
58A.However
B.Thus
C.Nevertheless
D.Yet
59A.provide
B.hire
C.exercise
D.exert
60A.preferable
B.desirable
C.obtainable
D.perfect
61A.tend
B.prefer
C.enjoy
D.oblige
62A.training
B.promotion
C.nurturing
D.cultivation
63A.varies
B.differs
C.changes
D.alters
64A.Still
B.Yet
C.Even
D.So
65A.correct
B.adequate
C.precise
D.proper
66A.separation
B.escape
C.flight
D.isolation
67A.contrasting
B.comparing
C.matching
D.measuring
68A.portrayed
B.described
C.related
D.narrated
69A.after
B.on
C.with
D.to
70A.involved
B.participated
C.attended
D.employed
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