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【单选题】
Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D. 听力原文: Americans who remember 'the good old days' are not alone in complaining about the educational system in this country, Immigrants complain, too. Lately a German friend was filled with anger when he learned that the first mathematics test given to his son as a college freshman included multiplication and division. Japanese businessmen in Los Angeles send their children to private schools staffed by teachers imported from Japan who teach mathematics at more advanced level. But I wonder: If American education is so poor, why is it that this is still the country of innovation? When I was 12 in Indonesia, I had to memorize the name of all the world's major cities. At the same age, my son, who was brought up a Californian, thought that Buenos Aires was Spanish for good food. However, unlike children of his age in Asia and Europe, my son had studied creative geography. When he was only 6, he drew a map of the route that he traveled to get to school, including the streets, the traffic signs and the houses that he passed. Dissatisfied American parents forget that in this country their children are able to experiment freely with ideas. without this they will not be able to think or to believe in themselves. Critics of American education cannot grasp one thing: freedom. America, I think, is the only country that extends even to children the license to freely sneak, write and be creative. Our public education is not perfect, but it is better than any other. (27)
A.
The Japanese mathematic teachers.
B.
Both the speaker and his German friend.
C.
Both Americans and immigrants.
D.
The son of the speaker's German friend.
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【简答题】中心静脉压的正常值为(),若患者的中心静脉压和血压均低于正常,最可能的情况是()。
【单选题】关于脐带下列哪项是错误的
A.
妊娠足月脐带长度一般为50cm
B.
脐带有两根脐动脉和一根脐静脉
C.
脐带表面由羊膜包围
D.
脐静脉的氧分压低于脐动脉
E.
脐带杂音的速率与胎心率同
【简答题】右心房和 的血压称为中心静脉压。正常值 。
【单选题】关于脐带,下列哪项是错误的
A.
脐带长度平均为50-55cm
B.
脐带长度短于30厘米为脐带过短
C.
脐带长度长于70厘米为脐带过长
D.
发生脐带缠绕胎儿颈部居多
E.
脐带表面被绒毛膜遮盖
【单选题】土质路堤的实测项目不包括()。
A.
平整度
B.
抗滑构造
C.
横坡
D.
边坡坡度
【多选题】下列各项有关瓦斯性质及瓦斯参数测定的一些说法中正确的有( )。
A.
瓦斯是指矿井中主要由煤层气构成的以甲烷为主的有害气体,有时单独指甲烷。瓦斯是一种无色、无味、无臭、可以燃烧或爆炸的气体,难溶于水,扩散性较空气高。瓦斯无毒,但浓度很高的时候,它会引起人的窒息
B.
瓦斯在煤层中的赋存形式主要有两种状态:在渗透空间内的瓦斯主要呈液态形式;另一种称为吸附瓦斯,它主要吸附在煤的微孔表面上和在煤的微粒内部,占据着煤分子结构的空位或煤分子之间的空间。实测表明,在目前开采深度下煤层吸附瓦斯量占70%~95%
C.
煤层瓦斯含量是指单位质量煤体中所含瓦斯的体积,单位为m3/t。煤层瓦斯含量是确定矿井瓦斯涌出量的基础数据,是矿井通风及瓦斯抽放设计的重要参数。煤层在开然条件下,未受采动影响时的瓦斯含量称原始含量;受采动影响,已有部分瓦斯排出后而剩的为残存瓦斯含量
D.
煤层瓦斯含量测定有地勘钻孔测定法,实验室间接测定法和井下快速直接测定法共3种
E.
煤层瓦斯压力是存在于煤层孔隙中的游离瓦斯分子热运动对煤壁所表现的作用力。煤层瓦斯压力是用间接法计算瓦斯含量的基础参数,也是衡量煤层瓦斯突出危险性的重要指标。测定方法主要有直接测定法和间接测压法两种
【单选题】下面哪种石膏板可以直接做顶棚饰面()
A.
穿孔纸面石膏板
B.
吸声穿孔装饰石膏板
C.
石膏板
D.
耐火纸面石膏板
【单选题】中心静脉血压的正常值是( )
A.
5~12cmH 2 O
B.
5-12mmhg
C.
12~15mm H 2 O
D.
12-15 mmhg
E.
8-12 mmhg
【简答题】中心静脉压(CVP)的正常值是()。|肺动脉压(PAP)的正常值是()。|肺毛细血管楔压(PCWP)的正常值是()。A. 0.49~0.98kPa(5~10cmH 2 O)B. 0.80~2.00kPa(6~15mmHg)C. 1.30~2.90kPa(10~22mmHg)D. 4.50~5.80kPa(36~44mmHg)E. 10.7~13.0kPa(80~100mmHg)
【单选题】关于脐带下列哪项是错误的
A.
妊娠足月(40周末),脐带长度一般为50cm
B.
脐带有两根脐动脉和1根脐静脉
C.
脐带表面由羊膜包围
D.
脐带静脉之氧分压低于脐动脉
E.
脐带杂音与胎心率相同
相关题目:
【多选题】下列各项有关瓦斯性质及瓦斯参数测定的一些说法中正确的有( )。
A.
瓦斯是指矿井中主要由煤层气构成的以甲烷为主的有害气体,有时单独指甲烷。瓦斯是一种无色、无味、无臭、可以燃烧或爆炸的气体,难溶于水,扩散性较空气高。瓦斯无毒,但浓度很高的时候,它会引起人的窒息
B.
瓦斯在煤层中的赋存形式主要有两种状态:在渗透空间内的瓦斯主要呈液态形式;另一种称为吸附瓦斯,它主要吸附在煤的微孔表面上和在煤的微粒内部,占据着煤分子结构的空位或煤分子之间的空间。实测表明,在目前开采深度下煤层吸附瓦斯量占70%~95%
C.
煤层瓦斯含量是指单位质量煤体中所含瓦斯的体积,单位为m3/t。煤层瓦斯含量是确定矿井瓦斯涌出量的基础数据,是矿井通风及瓦斯抽放设计的重要参数。煤层在开然条件下,未受采动影响时的瓦斯含量称原始含量;受采动影响,已有部分瓦斯排出后而剩的为残存瓦斯含量
D.
煤层瓦斯含量测定有地勘钻孔测定法,实验室间接测定法和井下快速直接测定法共3种
E.
煤层瓦斯压力是存在于煤层孔隙中的游离瓦斯分子热运动对煤壁所表现的作用力。煤层瓦斯压力是用间接法计算瓦斯含量的基础参数,也是衡量煤层瓦斯突出危险性的重要指标。测定方法主要有直接测定法和间接测压法两种
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