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增加：在缺词处加一个漏词符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（﹨）划掉。
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及修改均仅限一词；
2. 只允许修改10处，多者（从第11处起）不计分。
Because of my strong interest in math, so I dream of becoming a mathematician. But every time I didn’t do well in the math exam, I felt really sad and would cry, which bothered us a lot. My math teacher suggested I tried to fix the problems instead of just crying, an useless approach. Therefore, I started by thinking logically and discussing questions with my teacher frequent. Then I found out my weak points when I needed more practice, and gradually improved myself. I made a habit to practise math out of school every day. Under the help of some online math apps, I’ve been more enthusiastic about the subjects. Now I’m fully motivating and that’s already half the battle.
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
