1868年，日本某官员说过，“过去的西洋文明是外国人引进的，从今以后我们要用自己的手将西洋文明带入国内。”下列属于“用自己的手将西洋文明带入国内”的举措有（    ）

①确立君主立宪制            ②实行三权分立

③鼓励发展近代工业          ④学习欧美生活方式

滑块从斜面顶端滑下后在水平木板表面上滑行。请画出下图中滑块在木板上滑行时水平方向上受到力的示意图。

滑块从斜面顶端滑下后在水平木板表面上滑行。请画出下图中滑块在木板上滑行时水平方向上受到力的示意图。

根据短文内容，选择正确答案。

Many kids think they are ordinary. They think they aren't the prettiest or the smartest. At the same time, they think they aren't even the ugliest or the silliest，which would at least make them stand out. Everyone feels that way sometimes, especially in middle school. Kids seldom realize how special they are. When they see amazing athletes or cool pop stars, they often think: What have I got?

    It is all part of growing up. Growing up means understanding what you can do and what you can offer the world. When you're young, you don't see that. But as you get older, you realize that just by being yourself, you do offer something to other people. Maybe you aren't the best, but that doesn't make you “not amazing”.

    Think about your friends. Write down a list of things you like about them. Think about why you are friends with them in the first place. You will get to know that in the end, no matter if they aren't the smartest or the prettiest or the most talented, they are great in their own way. And they feel just the same about you!

    Remember, it gets easier as you grow older. You will realize that being the best at something is great, but it's okay if you cannot be the best. If you just live your life and try hard, you are still pretty amazing.

在探究模拟眼睛视力矫正的实验中，在图中的光屏是得到了一个清晰的像．

（1）此时，物距满足的条件是　{#blank#}1{#/blank#} 　．

（2）若用一个比较厚的凸透镜替换掉光具座上的凸透镜，则看到光屏上的像变模糊了．这时，我们可以在光屏的{#blank#}2{#/blank#} （选填：左、右）面找到一个清晰的像．

（3）在光屏位置不动的情况下，在凸透镜的左边A处放一个合适的眼镜的镜片时光屏上模糊的像变得清晰了，这说明这个眼镜是{#blank#}3{#/blank#} （选填：凸透镜、凹透镜）．

（4）此实验是模拟了{#blank#}4{#/blank#} （选填：近视眼、远视眼）的视力矫正过程．

中国近代民族资本主义工业年均注册工厂（家）出现如图所示变化的原因包括（　　） ①清政府的推动 ②辛亥革命的鼓舞 ③“实业救国”思想的影响 ④欧洲列强忙于战争，无暇东顾．