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What does a Layer 2 switch use to decide where to forward a received frame?（）
A . source MAC address
B . source IP address
C . source switch port
D . destination IP address
E . destination port address
F . destination MAC addre
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A complete paragraph should consist of topic sentence, supporting sentences and concluding sentence.
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A topic sentence itself contains two parts, which are ______.
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A topic sentence should be specific enough as to show the attitude of the author.
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A topic sentence is like a road sign that can indicate the direction.
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How is a topic sentence related to the other parts of the essay?
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A sentence outline consists of sentences and provides a more detailed plan of the writing; therefore it is more useful than a topic outline.
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The three components of a paragraph are the topic sentence, the supporting sentences, and _______.
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What is the purpose of writing a topic sentence at the beginning of a paragraph?
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Usually, the topic sentence appears __________ of a paragraph.
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What does NOT a speaker do to state the importance of a topic at the beginning of a speech?
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Which sentence is the best topic sentence?
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Topic sentence doesn’t introduce the main idea and subject of the paragraph. It can also provide a transition from the ideas in the previous paragraph.
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A topic sentence is composed of two parts: the thesis statement and the controlling idea.
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As we know, a simple paragraph usually consists of two parts: the topic sentence and_______.
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Not all the supporting sentences need to support the topic sentence.
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Look at the four squares that indicate where the following sentence could be added to the passage. As a result, the developing countries' share of global FDI inflows rises slightly, to 29%, by 2005.Where would the sentence best fit？
A．Square Ａ.
B．Square Ｂ.
C．Square Ｃ.
D．Square Ｄ.
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Look at the four squares that indicate where the following sentence could be added to the passage. Such a relationship does not develop in biology unless it benefits at least one of the members. Where would the sentence best fit？
A．Square Ａ.
B．Square Ｂ.
C．Square Ｃ.
D．Square Ｄ.
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Look at the four squares,A ,B ,C , and D, which indicate where the following sentence could be added to the passage. Where would the sentence best fit？
Sophisticated plumbing was needed to service bathrooms and also to heat buildings with either steam or hot water.
A Skyscrapers differed from previous tall structures with their use of technical innovations such as cast iron and the elevator. The development of cast iron technology, in which molten iron is poured into a mold, made modem plumbing possible.B Cast iron pipes, fittings, and valves could deliver pressurized water to the many floors of tall buildings and drain wastewater out. The invention of the mechanical elevator made it possible to construct even taller buildings.C Before the elevator, office buildings were rarely more than four or five stories high. In 1857, the first passenger elevator equipped with safety brakes prevented the elevator from falling to the basement when a cable broke. The elevator made the upper floors as rentable as the first floor, liberating architecture from dependence on stairways and human muscle.D
A．Square Ａ.
B．Square Ｂ.
C．Square Ｃ.
D．Square Ｄ.
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Look at the four squares,A ,B ,C , and D , which indicate where the following sentence could be added to the passage. Where would the sentence best fit？
The International Ladies Garment Workers Union increased its efforts to improve working conditions in factories.
A The ten-story Asch Building was a firetrap typical of the working conditions of the period, and the Triangle fire tragically illustrated that fire inspections and safety precautions were very inadequate.B The victims of the fire were trapped by the lack of fire escapes and by management's practice of locking the exit doors during work hours. The incident had a profound impact on women's unionism and job safety, affecting local and national politics in the process.C An era of progressive reform. began to sweep the nation, as people decided that government had a responsibility to ensure that private industry protected the welfare of workers.D There was a public outcry for laws to regulate workplace safety. The New York Factory Investigating Commission was formed to examine the conditions in factories throughout the state, and their report led to many new regulations in the years following the fire.
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Look at the four squares [■] that indicate where the following sentence could be added to the passage. Developed countries, for example, invariably have a nuclear family system, which facilitates social and geographical mobility. Where would the sentence best fit？
A．Square Ａ.
B．Square Ｂ.
C．Square Ｃ.
D．Square Ｄ.
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Which of the following sentences does NOT indictebility Is therenything I cn do foWhich of the following sentences does NOT indictebility Is therenything I cn do for you B．I’ll beble to spek Chinese innother two months. C．Where cn he be D．t tht time I could red without spectcles.
A．Is there anything I can do for you
B．I’ll be able to speak Chinese in another two months．
C．Where can he be
D．At that time I could read without spectacles．
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Directions: Supply a topic sentence for the follow...
Directions: Supply a topic sentence for the following paragraph. _______________________________________________________. A good starting point is narrowing down the type of car you want or need. Be realistic. You may envision yourself cruising around town in a little convertible, but that won’t leave much room for the kids and dogs. Once you’ve settled on the basic vehicle, do some research to find out which vehicles have good reliability ratings. The Internet and books can help you pick out the high maintenance turkeys. The next step is finding the model you are looking for. Used car lots will give you an idea of price, but they can be expensive and full of used car salesmen. Check your local paper, car buyers’ magazines and the Internet. When you finally track down what looks good, arrange to have your mechanic inspect it. Never omit this step. After your mechanic gives the car the OK, all that’s left is to haggle over the price.
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“__________” does not support the topic sentence “Socks and stockings give us clues to a person’s inner personality.”
A、Socks and stockings are available in more colors now than ever before.
B、Red socks show that the wearer has lots of energy that he or she needs to let go of.
C、Wearers of white socks and stockings are often hiding their true feelings.
D、Green stocks are worn when a person feels the need for rest and relaxation.
