听力原文：How many languages can you speak? (...

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听力原文：How many languages can you speak? (3)

Many languages.

Pretty well.

5 languages.

I can speak English fluently.

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【单选题】在C#中,下列代码的运行结果是(BB)。

t a = 30 , b = 20;

= a;

= 10;

nsole.WriteLine(a);

nsole.WriteLine(b);

10 换行 10

10 换行30

30 换行20

10 换行20

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【简答题】is the most important parameter in water pollution control , used as a measure of organic pollution and as a basis for estimating the oxygen needed for biological processesA. TOC B. COD C. BOD D. VSS

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【简答题】城市大数据云计算支撑平台中的PaaS服务包括身份认证、________、工作流、__________。

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【简答题】生物污染(biological pollution)

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【单选题】On average, worldwide daily trading of foreign exchange is closest to

impossible to estimate.

$15 billion.

$504 billion.

$6.00 trillion.

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【简答题】Air pollution occurs when harmful or excessive including gases, particles, and biological molecules are introduced into the Earth's atmosphere.(quantities of substances / quantities of smog)

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【单选题】The average daily __________ of fruit and vegetables is around 200 grams.

pollution

emotion

consumption

destruction

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【简答题】Biological pollution refers to the origin of pollutants from living organisms, including 、、 , as well as pollution caused by human beings themselves and their life activities

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【简答题】Air pollution occurs when harmful or excessive including gases, particles, and biological molecules are introduced into the Earth's atmosphere.

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【单选题】在C#中,下列代码的运行结果是() int a=30,b=20; b= a; a=10; Console.WriteLine(a); Console.WriteLine(b);

10 20

10 10

10 30

30 20

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相关题目：

【单选题】在C#中,下列代码的运行结果是(BB)。

t a = 30 , b = 20;