Read the article and select the best answer. Article: Sometimes, the simplest ideas are the best. For example, to absorb heat from the sun to heat water,you need large, flat, black surfaces. One way to do that is to build those surfaces specially, on the roofs of buildings. But why go to all that trouble when cities are full of black surfaces already, in the form of asphalt roads? Ten years ago, this thought came into the mind of Arian de Bondt, a Dutch engineer. He finally persuaded his boss to follow it up. The result is that their building is now heated in winter and cooled in summer by a system that relies on the surface of the road outside. The heat-collector is a system of connected water pipes. Most of them run from one side of the street to the other, just under the asphalt road. Some, however, dive deep into the groun. When the street surface gets hot in summer, water pumped through the pipes picks up this heat and takes itunderground through one of the diving pipes. At a depth of 100 metres lies a natural aquifer into which heat several heat exchangers have been built. The hot water from the street runs through these exchangers, warming the ground-water, before returning to the surface through another pipe. The aquifer is thus used as a heat store. In winter, the working system is changed slightly. Water is pumped through the heat exchangers to pick up the heat stored during summer. This water goes into the building and is used to warm the place up. After performing that task, it is pumped under the asphalt and its remaining heat keeps the road free of snow and ice. Question: For what purpose are the diving pipes used? Options: A: To absorb heat from the sun. B: To store heat for future use. C: To turn solar energy into heat energy. D: To carry heat down below the surface.
D

(Question)
Read the article and select the best answer. Article: Ears are for hearing -- everyone knows that. But for a creature called the Cuvier's beaked whale, hearing starts in the throat, a new study found. The observation might help explain how all whales hear. The work might also help scientists understand how animals are affected by underwater sonar . This sonar, used by some ships, sends out sound waves to locate underwater objects. The Cuvier's beaked whale is a so-called toothed whale. Toothed whales dive deep into the ocean in search of food. As the whales hunt, they produce sounds that reach objects and then return to the whales. This allows the animals to "see" the shape, size, and location of objects, even when they're 1,000 meters under the sea, where it is totally dark. To better understand how the whale hears, researchers from San Diego State University in California took X-rays of two Cuvier's beaked whales. The whales had died and washed up on the beach. Ted Cranford and his colleagues used the images to make a computer model of a Cuvier's beaked whale's head. Then, they modeled the process of sound traveling through the head. The researchers knew that some sounds get to the ears of a toothed whale through a structure called "the window for sound". Found on the lower jaw, this structure is very thin on the outside and has a large pad of fat on the inside. When the researchers used their computer model to work out how sound waves travel in the whale's head, they were surprised to find that sounds coming from right in front of the whale actually travel under the animal's jaw. From there, sound waves move through the throat, into a hole in the back of the jaw, and finally to the pad of fat near the animal's ears. Cranford guesses that other types of whales may hear through their throats. Further testing is needed to be sure. Eventually, the insight into how whales hear might explain whether sonar testing by military ships is causing the animals to wind up on beaches. Question: Which of the following describes the way taken by sound waves through a Cuvier's beaked whale? Options: A: A hole in the back of the jaw - the ears - the jaw - the throat. B: The jaw - the throat - a hole in the back of the jaw - the ears. C: The throat - the jaw - the ears - a hole in the back of the jaw. D: The ears - the throat - a hole in the back of the jaw - the jaw.
(Answer)
B

Ques: Read the article and select the best answer. Article: We all know that Paris is a popular travel destination, which has much more to offer than just seeing the Louvre and the Eiffel Tower that are well-known. Experience this amazing city through some of its secret places. River Boats Tour the heart of Paris by boat along the Seine River! Boats offer 8 must-see tourist stops along their boat tour route. The cost is 13 Euros for a whole day of river boating with stops for tourists to walk through the Parisian sites. There is a 15-minute interval between two boats. Boating along the Seine is a good way to drink in the unique atmosphere of Paris! Children's Science Museum If you are travelling to Paris with kids, the Children's Science Museum is the perfect place to visit. The Children's Science Museum has many exhibits for children. Some exhibits exercise a child's cognitive skills. The cost is low by European standards at only 8 Euros per adult and 4.50 Euros per child. Medieval Tavern In Paris , tourists can enjoy the night at Medieval Tavern every Thursday night from 8PM--2AM. This tavern opens its doors to the people of Paris and invites them to experience a life from long ago. The menu includes foods that were enjoyed in old days. The entire experience can be enjoyed for only 15 Euros per person! Luxembourg Garden The garden is the second largest public park in Paris. Whether you are interested in a walk through the flowers or a pleasant ride on the old carousel , this park is a good choice. Children like playing in the theater while adults enjoy free musical performances. Welcome to Paris and enjoy these attractions. Question: At Medieval Tavern tourists_. Options: A: have to pay extra money for delicious food B: have to spend 15 Euros per person for food C: can enjoy the food in the old days every Thursday night D: can spend every night experiencing the old life from 8PM to 2AM
Ans:
C