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【单选题】
听力原文:M: Dr. Wilson, can I tall to you for a minute? W: Sure, Fred, what is it? M: I'm worried about my grade in your English class. I really want an 'A', but... W: I see. Well, it might be hard for you to get an 'A'. So far you have a 'B' average. You would need a 97 or 98 on your final exam to get an 'A'. Do you think you can get that high a score? M: Probably not. The problem is I have to have a 'B' average in all the subjects to get the prize from our government, or I'll have to find a part-time job. I'm afraid it is difficult for me to put all my heart in my study if I have to work in my spare time. I'll probably get an 'A' in history and a 'B' in math, but I'll get a 'C' in chemistry. W: That is a problem, isn't it? You'll have to have an 'A' in English to get a 'B' average. M: Yes, but it doesn't look very good for me right now. W: I gave two less tests this term than I usually do. That might have changed your grade a little. Maybe I'll give everybody a chance to write a composition in English, then you'll have a good chance to get an 'A'. M: That would be great. I'll try my best. Thank you very much. (16)
A.
English.
B.
History.
C.
Chemistry.
D.
Maths.
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【单选题】运输单据是托运人将货物交付承运人或其代理人办理装运时,由承运人或其代理人向托运人签发的,用以证明托运货物装船的收据。以下运输单据中有物权凭证作用的是( )。
A.
海运提单
B.
航空运单
C.
内河提单
D.
铁路运单
【判断题】烟草公司是典型的仓储物流企业。 ( )
A.
正确
B.
错误
【单选题】航空运输货物时,其收货人提货的凭证是()。 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
航空运单
B.
提货通知单
C.
承运货物收据 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【单选题】发动机实际工作时,进气行程开始时,排气门________。
A.
关闭
B.
打开
C.
不能确定
【单选题】在发动机实际工作中,在下列哪个时间进排气门将同时关闭?
A.
进气行程开始
B.
压缩行程开始
C.
排气形成末尾
D.
压缩行程末尾
【单选题】食物中限制氨基酸的存在影响机体
A.
对其他氨基酸的利用
B.
使蛋白质供能受限
C.
合成组织蛋白质受限
D.
蛋白质分解代谢受限
E.
机体氮平衡受限
【判断题】发动机在实际工作的过程中,进排气门开闭时刻和进排气行程开始结束时刻同步。
A.
正确
B.
错误
【简答题】(7分)如图,是水的电解实验装置图。 (1)在图上标出电池的“+、—”极(共2分) (2)写出相关化学反应表达式________________________(2分) (3)若产生氧气50L,则生成的氢气为_________L;(1分) 若标准状况下氢气的密度为0.0899g/L,氧气密度为1.429g/L,则生成氧气 与氢气的质量比为_________________________(只列计算...
【单选题】十九大报告中提到,健全人民当家做主制度体系,发展社会主义民主政治,要长期坚持、不断发展我国社会主义民主政治,积极稳妥推进政治体制改革,推进社会主义民主政治( )、( )、( ),保证人民依法通过各种途径和形式管理国家事务,管理经济文化事业,管理社会事务,巩固和发展生动活泼、安定团结的政治局面。
A.
科学化、规范化、流程化
B.
制度化、规范化、程序化
C.
规范化、制度化、法制化
D.
制度化、规范化、法制化
【判断题】发动机在实际工作中,进排气门开闭时刻和进排气行程起始时刻同步。
A.
正确
B.
错误
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