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根据下面短文回答下列问题。 People are busy working every day, so they do not have enough time to do exercises. As a result(结果), many people become too fat or too thin. To keep our bodies healthy, we have to do exercises every day. There are many kinds of exercises. Bending(弯腰) and stretching(伸展) helps us move easily. Before we play ball games or swim, it is better for us to do bending and stretching exercises first. This kind of exercise is sometimes called warm-up exercise. Running is also a good exercise. If we cannot run fast, we can jog. Jogging means running slowly. Again, before we run or jog, we must do warm-up exercises. Also, we should not run or jog in busy streets. The air there is often dirty. Some people like weight lifting(举重) because it can make their bodies strong. Also, we need to do some warm-up exercises before weight lifting. ______ is called warm-up exercises.
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To the west and off the European Continent(欧洲大陆), there are several thousands of islands on the Continent Shelf. They are generally called Great Britain. For the convenience’s sake, it is often shortened to Britain. Still to the west of Great Britain is the second largest island known as Ireland. The United Kingdom of Great Britain and Northern Ireland(UK)is made up of Great Britain, Northern Ireland, and a number of smaller islands around them. The total area of the country is some 240 000 square kilo meters with a population of about 56 million.________________________________________________________________________________
I grew up knowing that I was different, and I hated it. When I started school my classmates made it clear to me how I must look to others: a little girl with an ugly lip. And I was deaf in one ear. I was sure that no one outside my family could love me. Then I entered Mrs. Green’s second-grade class. Mrs. Green was round and pretty. Everyone loved her. But no one came to love her more than I did. And for a special reason. The time came for the annual(一年一度的) hearing test given at our school. The "whisper test" required each child to go to the classroom door, turn sideways, close one ear with a finger, while the teacher whispered something from the desk, which the child repeated. Then the same for the other ear. The teacher usually whispered things like "The sky is blue. " or "Do you have new shoes". My time came. I turned my bad ear toward her, blocking the other just enough to be able to hear. I waited, and then came the words that God had surely put into her mouth, seven words that changed my life forever. She said softly, "I wish you were my little girl. \ We can infer from the passage that______.
简述当代教育学发展的特点。
某公路山岭隧道，长度为2000m；穿越的岩层主要是坚硬岩，岩体较完整，块状或厚层状结构；采用新奥法钻爆施工。两洞口处由于岩层较破碎设有明洞，进口明洞长10m，出口明洞长8m；两洞门采用端墙式洞门。 根据此案例场景，回答下列问题： 有关设置明洞的论述错误的是( )。
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