题干

下列图形中不是中心对称图形的是(   )

A:

B:

C:

D:

上一题 下一题 0.0难度 选择题 更新时间:2019-05-16 06:08:53

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B

同类题2

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    As Internet users become more dependent on the Internet to store information, are people remember less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.

    In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.

    In another experiment, the researchers gave people facts to remember, and told them where to find the information an the Internet. The information was in a specific computer folder (文件夹). Surprisingly, people later remember the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called “transactive memory (交互记忆)”

    According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a later date. This doesn’t mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.

同类题4

阅读下面短文, 掌握大意, 然后从每题所给的A、B、C、D四个选项中选出最佳选项.

    Andy woke up and looked at the clock 11: 30? He jumped out of bed and threw on clothes. He had wanted to get up early and surprise his dad with Father's Day breakfast in bed﹣with his mom's help of course. He took up the wrapped present on his desk and went to find his 1.

    "Where is Dad?" Andy checked all the rooms, but the whole house was empty. He walked out to the 2, and his jaw dropped. Dad was holding a hammer and looking at a new tree fort that stood in 3 big back yard.

    Andy climbed the rope ladder up to the fort. It had two rooms with three small windows.

    Dad followed Andy into the fort, looking excited. "I spent all morning 4 it. I had one when I was your age. Grandpa surprised me with it on Father's Day, too. "

    "So, it's like a(n) 5?" Andy asked.

    "Yes, this is a present for 6 of us. Maybe you'll build one for your son one day. "

    Dad looked around and asked Andy 7 they would do first in the tree fort. Andy slowly showed the 8 and said, "Happy Father's Day!" He didn't think it was possible, 9 Dad's smile widened as he opened the gift. "A chess set! How did you know I wanted 10?" Andy always saw his dad playing against the computer and he guessed it 11 be his father's favorite.

    "Let's play it!" Dad set up the chessboard. "It's the 12 gift I got of all this Father's Day. "

"I'm glad you like it." Andy said.

    "I do, but I was talking about spending more time with you. I 13 loved the father﹣son time. I spent a lot with your grandfather when I was 14. "

    Andy looked at his dad. "Can we call Grandpa and 15 him to come to the fort?"

Dad squeezed Andy's shoulder. "I think he'd love that."

    That day, the three men played, talked and laughed. It was really a happy Father's Day.