下列图片呈现的是我国古代各个时期的生产工具，其中涉及动力革新的有(     )

①牛耕         ②花楼机       ③翻车           ④水排

增加：在缺词处加一个漏词符号（^），并在此符号下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词。

2）只允许修改10处，多者（从第11处起）不计分。

3）必须按答题要求做题，否则不给分。

    Today is the happy day in this holiday. Although I was very tired, but I found myself in these busy days. I am afraid of taking a bus usual; the awful smell of the bus drives me mad, make me feel carsick. But today I did feel carsick. I can defeat carsickness finally. At night I went out with an old friend I ever liked him, but all of us were so busy with examinations at the high school that we hadn't been together. I was much surprised when I received his call that I could hardly believe my ears. At first, I think we would never meet before we graduated. Thank him for giving me a happy day!

①我国的国际影响力日益提高

②我国社会主义建设取得了巨大成就

③我国一些重要科技已走在世界前列

④我国实施的科教兴国战略已凸显成效