Most marine biological sewage treatment plants consist of all the following statements except ______.A.aeration(通风) tanksB.settling tanksC.disinfection agent(消毒剂)D.anaerobic bacteria(厌氧菌)

题目

Most marine biological sewage treatment plants consist of all the following statements except ______.

A.aeration(通风) tanks

B.settling tanks

C.disinfection agent(消毒剂)

D.anaerobic bacteria(厌氧菌)

参考答案和解析

正确答案：D

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相似问题和答案

第1题：

Most people are familiar with the idea that all matter() atoms.

A、consists of

B、consist of

C、is consisted ofare consisted of

参考答案：B

第2题：

第三组：

The sewage treatment system must be capable of discharging an effluent that comes within the limits of the tests. Sewage can be treated biologically so that it may be discharged with minimal damage to ecosystem. Biological treatment involves the use of living organisms to treat the sewage within the sewage treatment plant so the liquids and sludge discharged are within the standards specified.

Biological treatment plants are usually built up as a module and consist of various sections.

Waste matter collected from the ships sanitary appliances is led through a sanitary piping system to the treatment module. The solid matter is broken up by passing it through a screen or a series of revolving cutters. The broken up solid material, together with the waste liquid, passes into a tank containing bacteria which require oxygen and a nutrient to propagate. The nutrient is contained in the solid waste material, and oxygen is supplied by bubbling compressed air through the broken up waste. The propagated bacteria change the waste material into a sludge by aerobic digestion. The sludge is finally treated to kill the coliform. bacteria before it is passed overboard.

When a biological sewage plant is started up, such as when activating a new ship or after cleaning out the tank, a pellet containing bacteria is introduced into the tank. It takes approximately one week for the bacteria to propagate and make the system fully effective. The choice of sanitary appliance cleaners requires extreme care, as many cleaners are toxic to the active bacteria. Once a biological sewage plant is made active it should not be shut down. If it is it will have to be reactivated again because the bacteria will die without a supply of nutrients and oxygen.

Bacteria that require oxygen for their survival are referred to as aerobic. Aerobic bacteria are normally used in ships&39; sewage treatment equipment. Other forms of bacteria that do not require oxygen are referred to as anaerobic. Anaerobic bacteria are used in shore based sewage treatment works where methane is obtained as a by-product for use as fuel.

This passage is mainly about

A.sewage treatment methods

B.the various sections of a sewage treatment plants

C.biological sewage treatment system

D.how the sewage treatment plants are started up

正确答案：C

第3题：

Most marine biological sewage treatment plants consist of all the following statements except()

A.aeration tanks

B.settling tanks

C.disinfection agent(消毒剂

D.anaerobic bacteria(厌氧菌)

答案：C

第4题：

Which of the following is the MOST important reason for referencing the HCL？（）

A、 To ensure that all hardware being used has previously been tested
B、 To ensure that all hardware being used has the latest firmware
C、 To ensure that all hardware being used is the most energy efficient
D、 To ensure that all hardware being used can be upgraded in the future

正确答案:A

第5题：

Biodegradation of the oil slick in sea water is assisted by all the following marine micro-organisms which are capable of metabolising oil compounds except ______

A.bacteria

B.moulds

C.yeasts

D.seals

正确答案：D

第6题：

All of the following statements about nonverbal communication are true EXCEPT_______.

A.The gesture of nodding means "Yes" in all cultures.

B.Nonverbal signs can be used as a means of substituting for verbal communication

C.The handshake is the most common touching behavior. of greeting business people

D.In western countries, personal space is highly valued

正确答案：A
解析：本句参考译文：以下陈述除了哪一项其余均正确?【知识点来源：Unit 2】本题考查你对非言语交际的理解。选项“The gesture of nodding means ‘Yes’ in all cultures."可译为：在所有文化中人们都用点头表示同意。此项陈述与事实不符，例如：印度人用点头表示不同意。请看其余选项参考译文：The handshake is the most common touching behavior. of greeting business people.握手是商务人士见面问候时最普遍的身体接触行为。Nonverbal signs can be used as a meansof substituting for verbal communication.非言语符号可以作为替代言语交际的一种方式。In western countries, personal space is highly valued.西方国家非常重视人际距离。

第7题：

Biological treatment may use __ to treat sewage (1)living organisms (2)chemicals (3)additives

A.(1)

B.(2)

C.(3)

D.(1)(2)(3)

正确答案：A

第8题：

The biological sewage treatment plant utilizes Oto completely break down the sewage into an acceptable substance for discharge－into anywaters

A.agitation function

B.bacteria

C.chemica

D.oxidizing function

答案：B

第9题：

共用题干
Ecosystem
1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where living creatures expand within a given area. You can say that an ecosystem is the natural environment where biological organisms（生物）such as plants,animals and humans co-exist in this world. So naturally that includes you and me. Yes,we are all members of an ecosystem!
2 .There are different kinds of ecosystems depending on the type of surface or environ-ment. Most are naturally made such as the ocean or lake and the desert or rainforest.Some are man-made or artificial to encourage co-habitation（同居）between living and non-living things in a monitored environment,such as a zoo or garden.
3 .Plants make up the biggest group of biological creatures within an ecosystem,and that's because they are the natural food producers for everyone. Plants raised in the earth need air and collect sunlight to help them grow. When they grow,the plants and its fruits or flowers eventually become a source of food to animals,microorganisms（微生物）and even hu- mans,of course. Food is then converted to energy for the rest of us to function,and this hap-pens in a never-ending cycle until the living creatures die and break up back in the earth.
4 .Ecosystems are the basis of survival for all living things.We depend on plants and ani-mals for food. In order for us to exist,we need to grow and care about other organisms. We also need to care for the non-living things within our environment like our air and water so we can continue living as a population. Since plants,animals and humans are all of various species（物种）,we all play a role in maintaining the ecosystem.
5 .To preserve our ecosystems,we should stop using too much energy,which happens when we consume more than our share of resources. Humans should not disturb the natural habitat（栖息地）of plants and animals,and allow them to grow healthily for the cycle to con-tinue. Too many people in a habitat can mean displacement（搬迁）: imagine being thrown out of your home because there is no more space for everyone. Worse,overpopulation can also ru- in the environment and cause destruction of existing plants and animals.

Plants,animals and humans are all effective in______.
A: our share of resources
B: a biological creature
C: a given area
D: the maintenance of the ecosystem
E: the source of food
F: various species

答案：D

解析：

文章第二段主要讲根据不同的表层类型和环境类型，有各种不同的生态系统。主题句之后就是介绍不同的生态系统。B项What Are Different Types of Ecosystems? （有哪些不同类型的生态系统？）符合本段主题，故选B。
文章第三段主要讲植物是生态系统中最大的群体，因为它要为所有生态系统的成员制造食物。地球上的植物需要空气和阳光的帮助才能生长，在生长过程中，植物及其果实和花朵最终变成动物、微生物和人类的食物来源，然后食物转化成能量使个体发挥功能，这个过程循环进行，直到生物死亡，在土壤中分解。E项How Does an Ecosystem Work?（生态系统如何运行？）符合本段主题，故选E。
文章第四段主要讲生态系统为所有生物提供最基本的生存模式。我们需要从动植物身上获得食物，我们也需要空气和水来继续生存。动植物和人作为不同的物种，在维持生态系统上都发挥着作用。F项Why Are Ecosystems Important?（生态系统为什么重要？）符合本段主题，故选F。
文章第五段主要讲为了保护生态系统，我们要停止过度使用能源，不应该扰乱动植物的栖息地，应该控制人口数量。A项What Can We Do to Help Protect Ecosystems?（我们能做些什么来帮助保护生态系统？）符合本段主题，故选A。
题干意为“在一个生态系统中，植物、动物和人类共同生活在一定地区。”文章第一段第三句指出，你可以说生态环境是生物，比如植物、动物、人类，共同生活的自然环境。C项a given area（一定地区）与原句意思相符，故选C。
题干意为“在一个生态系统中植物非常重要，因为对于其他生物来说，它们是食物来源。”文章第三段第一句指出，植物是生态系统中最大的群体，因为它要为所有生态系统的成员制造食物。E项the source of food（食物来源）与原句意思相符，故选E。
题干意为“植物、动物和人类在维持生态系统中都发挥作用。”文章第四段最后一句指出，植物、动物和人属于不同物种，我们在维持生态系统中都发挥作用。D项the maintenance of the ecosystem（生态系统的维持）与原句意思相符，故选D。
题干意为“为了保护我们的生态系统，我们应该只使用我们的那份资源。” 文章第五段第一句指出，为了保护生态系统，我们应该停止过度使用能源，除了我们的那份资源外不应该消耗别的资源。A项our share of resources（我们的那份资源）与原句意思相符，故选A。

第10题：

单选题

According to the passage, most American Indian children loved all the following EXCEPT _____.

fishing

hunting

swimming

singing

正确答案： B

解析：
文章首段第三句提到“Like most Native American children then, he liked to fish, hunt, swim, and play games outdoors.”，由此可以推断，大部分美国孩子喜欢钓鱼、打猎、游泳，故D项正确。

Most marine biological sewage treatment plants consist of all the following statements exc

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