如图所示,在下列四个物理实例中,运用的科学方法相同的是与(选填序号)。实例②运用

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问题:

如图所示,在下列四个物理实例中,运用的科学方法相同的是              (选填序号)。实例②运用的科学方法叫做          ,请你再举三个使用该科学方法的物理实例:                                                                                                                

考点:力的三要素
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阅读理解。

     It's an amazing change when a caterpillar (毛毛虫) turns into a butterfly. That just might explain Taiwan

singer Jolin Tsai's choice of name for her latest album (唱片/专辑).

     On March 27, Tsai will release Flower Butterfly, her first album for Warner, the company she signed to

recently.

     The 28-year-old Tsai is known for the challenges she takes on. This time it is ballet. For the video that

goes with the album, she had to pirouette (用脚尖旋转) 20 times without stopping. It was hard going. When

she started training she couldn't even manage to spin (旋转) three times.

     "It took me longer to learn the move than anything I've ever tried!"she said.

     If the ballet was hard, the photo for the album art may have been harder. Tsai had to hang upside down

from a wire for an hour. It was so that her shadow (影子) would seem like a butterfly spreading its wings.

     But Tsai is facing another challenge. Her old record company (唱片公司), EMI will release an album of

music Tsai recorded when she was with the label. This means that Flower Butterfly will be fighting it out in

the market with old Jolin music.

     But Tsai didn't seem to care about the problems with her old company:

      "I've trained myself to be strong. I hope that other girls will follow my example and be themselves. Don't

be afraid of what other people say. One day you'll turn into a beautiful butterfly."

1. Taiwan singer Jolin Tsai is famous for ______.

A. her latest album

B. the challenges she takes on

C. Flower Butterfly

D. an amazing change

2. From this passage, we can know ______.

A. Tsai was good at ballet when she was young

B. it took her a short time to learn the move

C. when she started training she couldn't even manage to spin three times

D. Tsai seemed to care about the problems with her old company

3. Tsai hopes that ______.

A. one day she'll turn into a beautiful butterfly

B. her shadow would seem like a butterfly spreading its wings

C. other girls will follow her example and be themselves

D. Flower Butterfly will be fighting it out in the market with old Jolin music

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物质环境对学前儿童有怎样的影响?

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色环上色相距在案120°左右的对比称为()

A、互补色相

B、对比色相

C、中差色相

D、邻接色相

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以下程序段的输出结果是______。
num=0
Do While num<=5
num=num+1
Loop
Print num

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简述煤气中毒人员的抢救处理需保持冷静,应采取哪些措施?

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