使用节流装置测量流量时,差压计的正压侧取压口在节流件的迎流面。

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问题:

使用节流装置测量流量时,差压计的正压侧取压口在节流件的迎流面。

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计算下表中每项任务的总时差,填充其中的空(11)~(13)。

填充其中的空(11)

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读图下图回答问题。(10分)

(1)此时,瑞典首都斯德哥尔摩(18°E,59°N)的区时为   时,该地昼夜长短的特点是        。(2分)

(2)据图判断甲处风向为        。(1分)

(3)请你在小图画出a→b气压的空间变化曲线。(1分)

(4)描述未来几天,b地的天气变化。(3分)

(5)比较乙丙两地的气温日较差,并分析原因。(3分)

题型:判断题

农业生产上常用质量分数为16%的食盐水来选种,实验室欲制150g这种溶液,其操作步骤是:

(1)计算所需____的质量,分别为____、____;

(2)称量________、____倒入_______内;

(3)用________量取,倒入________,用___搅拌,其作用是______________。

题型:判断题

People are indulging in an illusion whenever they find themselves explaining at a cocktail(鸡尾酒) party, say, that they are "in computers," or "in telecommunications," or "in electronic funds transfer". The implication is that they are part of the high-tech world. Just between us, they usually aren’t. The researchers who made fundamental breakthroughs in those areas are in a high-tech business. The rest of us are () of their work. We use computers and other new technology components to develop our products or to organize our affairs. Because we go about this work in teams and projects and other tightly knit working groups(紧密联系在一起的工作小组), we are mostly in the human communication business. Our successes stem from good human interactions by all participants in the effort, and our failures stem from poor human interactions. The main reason we tend to focus on the () rather than the human side of the work is not because it’s more () , but because it’s easier to do. Getting the new disk drive installed is positively trivial compared to figuring out why Horace is in a blue funk(恐惧) or why Susan is dissatisfied with the company after only a few months. Human interactions are complicated and never very crisp(干脆的,干净利落的) and clean in their effects, but they matter more than any other aspect of the work. If you find yourself concentrating on the () rather than the (), you’re like the vaudeville character(杂耍人物) who loses his keys on a dark street and looks for them on the adjacent street because, as he explains, "The light is better there!".

rather than the ()

A.technology

B.sociology

C.physiology

D.astronomy

题型:判断题

贸易收支又称有形贸易收支,包括进口贸易收支和出口贸易收支。按国际货币基金组织规定,进出口商品价格都应按( )计算。

A.离岸价
B.到岸价
C.国际流通价
D.合同约定价

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