《诗经》赋、比、兴是其主要的表现形式。-我要搜题网

[填空题]少年的年龄特征是指与少年年龄阶段相适应的（）、（）、（）。

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[填空题]电解质有电解槽“血液“之称，在电解过程中起着溶解（）、导电和保持（）的作用。

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[单项选择]关于精浆的叙述错误的是（）。
A. 乳白色
B. 弱碱性液体
C. 为精子提供能源物质
D. 参与精液的凝固和液化
E. 主要由附睾分泌液组成

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[判断题]接地是绝缘体防静电的重要措施之一。( )
A.正确
B.错误

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[单选题]齐步、正步和礼步时，听到立定口令，左脚再向前大半步着地，脚尖向外约( )度，两腿挺直，右脚取捷径迅速靠拢左脚，成立正姿势。
A.20
B.25
C.30
D.35

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[不定项选择题]共用题干 A Biological Clock
Every living thing has what scientists call a biological clock that controls behavior. The bio- logical clock tells______(51)when to form flowers and when the flowers should open. It tells ______(52)when to leave the protective cocoons and fly away,and it tells animals and human beings when to eat,sleep and wake.
Events outside the plant and anima______(53)the actions of some biological clocks.Sci- entists recently found,for example,that a tiny animal changes the color of its fur______(54) the number of hours of daylight.In the short______(55)of winter,its fur becomes white.The fur becomes gray brown in color in the longer hours of daylight in summer.
Inner signals control other biological clocks.German scientists found that some kind of internal clock seems to order birds to begin their long migration______(56)twice each year. Birds ______(57)flying become restless when it is time for the trip,______(58)they become calm again when the time of the flight has ended.
Scientists say they are beginning to learn which______(59)of the brain contain biologica] clocks.An American researcher,Martin Moorhead,said a small group of cells near the front of the brain______（60)to control the timing of some of our actions.These______(61)tell a person when to______(62),when to sleep and when to seek food.Scientists say there proba- bly are other biological clock cells that control other body activities.
Dr Moorhead is studying______(63)our biological clocks affect the way we do our work .For example,most of us have great difficulty if we must often change to different work hours.
______(64)can take many days for a human body to accept the major change in work hours .Dr. Moorhead said industrial officials should have a better understanding of biological clocks and how they affect workers.He said______(65)understanding could cut sickness and accidents at work and would help increase a factory's production. 57._________
A.prevented from
B.ordered by
C.helped by
D.intruded on

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[多选题]对现有地基的陷穴、暗穴，不可以采用（）等措施。
A.灌砂
B.灌浆
C.拦截
D.开挖回填
E.重锤压实

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[单选题]采用抛挂短路地线的方法时，抛挂地点应在伤员( )以外的电源侧。
A.4m
B.5m
C.8m
D.10m

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[单项选择]血清学检测时，电解质浓度通常是（）
A. 2%（NaCl）
B. 10%
C. 5%
D. 0.9%
E. 1.5%

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[单项选择]如果r_f=6%，E(r_M)=14%，E(r_P)=18%，那么资产组合的β值等于( )。
A. 0.5
B. 1.5
C. 2.0
D. 2.5

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[简答题]该部队应如何办理有关手续

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[单项选择]侦查人员对被害人指认某人或者某些人犯罪的证词，应当（）。
A. 采信
B. 不信
C. 有保留的采信
D. 与其他证据相互印证