题干

小明使用弹簧测力计前发现指针指在0.4N处,没有调节就测一物体的重力,且读数为2.5N,则物体重力的准确值应为(  )

A:2.1N

B:2.5N

C:2.7N

D:2.9N

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答案(点此获取答案解析)

A

同类题1

阅读下面短文,根据内容,补全表格中所缺的信息。

Street Markets Around the World

    There are many ways of shopping. You can shop by telephone, by post or through your home computer, but for many people, the most exciting way to shop is also the most traditional—at a street market. You can find markets anywhere in the world. Here are four of them:

    There are many "floating markets" in Asia; perhaps the most unusual(非同寻常) is in Thailand(泰国), at a place called Damned Saduak. It's open from six in the morning to the noon every day. People sell fresh fruit from their boats.

    Many Belgians(比利时人) say that the Grand Place is the most beautiful square in the world. It's the home of a colorful flower market. It's open every day except(除了) Monday. On Monday, instead of(替代) flowers, there's a wonderful bird market.

    One of the world's famous markets is in Mexico City(墨西哥城)—the Sonora Market. You can buy toys, birds, herbs(草本) and medicine. There're all kinds of things. It's open every day from early in the morning till late at night.

    In England, on Saturday and Sunday thousands of young people from all over London travel to the Camden Market—it's the place to go for street fashion, CDs and tapes. Many people also go there for fun.

Names

____

Feature(特征)

Things to Sell

Open Time

the Damned Saduak

Thailand

____

fresh ____

Every day

____

Belgium

beautiful

____

From____ to Sunday

birds

Monday

the Sonora Market

Mexico

____

all kinds of

____

Every day

the Camden Market

____

fashionable

fashion things

Every ____

同类题3

完形填空

    I believe I had the perfect life. Because I was about to 1 my high school, and on my way to college, I had great friends and a loving family. There was nothing 2. But I spoke too soon.

    It was around 9:25 a. m. that I heard the news that would 3 my life forever. My brother Zach had been in a car accident. He fought for five days before he 4. That day, I became an only child. I felt extremely 5.

    After Zach's death, I found6 in food. I ate, then I slept, then I ate again. I couldn't cry. I could hardly feel anything, and I was 7. I stopped building relationships for fear that they would end just as 8 as Zach's life. Also, I became nervous about any potentially 9 situations-driving late at night-but I couldn't express this fear of life 10 I wanted to be strong for my parents. I saw my parents' 11 worse than mine because of the losing of their son. I didn't want them to 12 me. I also experienced a lot of 13, because I was angry about why the sadness had happened to me, and I never  14from this emotion.

    Now, it has been nearly five years since Zach's death. I don't 15 life anymore: I fact it bravely. I 16 my friendships and began socializing more. I even 17 Zach's story with people around me, although my new friends met him they know about Zach.

    One lesson I learned from losing my brother was never to be 18 to say, “I love you.” I loved my brother, but it was too late to 19 it loudly. The last time I remember telling my brother I loved him was when he was when he was dying. Don't make this 20 like me.