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【简答题】
微量元素在人体中存在量极少,通常指低于人体体重0.01%的矿物质。微量元素虽然在人体内的含量不多,但与人的生存和健康息息相关,对人的生命起至关重要的作用。它们的摄入过量、不足、不平衡或缺乏都会不同程度地引起人体生理的异常或发生疾病。值得注意的是这些微量元素通常情况下必须直接或间接由土壤供给,但大部分人往往不能通过饮食获得足够的微量元素。简述各种微量元素的功能及缺少后的病症(至少5种)?
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参考答案:
举一反三
【单选题】听力原文:W: I want to try something new in the project. What's your opinion? M: Well, I prefer to go by the book. At least it is safer, isn't it? Q: What does the man suggest? (18)
A.
Testing a new but safer method.
B.
Strictly obeying the established rules.
C.
Trying something new from the book.
D.
Learning a new method through practice.
【单选题】Everyone should do something _________ wild animals. [     ]
A.
to protect
B.
protecting
C.
protect
D.
to protecting
【单选题】水分子通过()的作用可与另4个水分子配位结合形成正四面体结构。
A.
离子键
B.
氢键
C.
二硫键
D.
配位键
【单选题】在场面调度中,()是一种演员调度的方法,镜头中演员作水平或者垂直方向的运动。这种调度缺少纵深感,带有比较强烈的绘画感,利于展现一个连续的动作或连贯的情节。
A.
平面调度
B.
纵深调度
C.
对角线式场面调度
D.
重复场面调度
【判断题】'Salutation' is not compulsory in a letter.()
A.
正确
B.
错误
【单选题】水分子通过()的作用可与另4个水分子配位结合形成四面体结构
A.
范德华力
B.
氢键
C.
盐键
D.
二硫键
【单选题】介于活性污泥法和生物膜法之间的是
A.
生物滤池
B.
生物接触氧化池
C.
生物转盘
D.
生物流化床
【简答题】动画产业是21世纪的新兴文化产业,据经济专家预测,中国动画产业拥有超千亿元的巨大发展空间。但是,我国动画作品却不尽如人意,缺少时代特征,说教色彩明显;创作方式模仿美、日居多,风格单调死板;影视制作简单,缺乏创意,对我国青少年缺乏吸引力。据统计,我国青少年最喜爱的动画作品中,日本占60%,欧美的占29%,而中国的只占11%。根据材料,运用哲学知识说明如何增强国产动画作品对青少年的吸引力?
【单选题】What is a GMDSS functional or carriage requirement for compulsory vessels?()
A.
A compulsory vessel must carry at least two (2) licensed GMDSS operators
B.
A compulsory vessel must satisfy certain equipment carriage requirements that are determined by where the vessel sails
C.
A compulsory vessel must be able to transmit and respond to distress alerts
D.
All of the above
【单选题】It can be seen from the passage that in the second stage ______ .
A.
some traditional goods and services were not successful when provided by the home economy
B.
the market economy provided new goods and services never produced by the home economy
C.
producing traditional goods at home became socially unacceptable
D.
whether new goods and services were produced by the home economy became irrelevant
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