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- 1what can we students do to make the world more peaceful and a better place.
- 2用...so...that...造句,中间用形容词或副词
- 3已知三氧化硫溶于水生成硫酸,将40g三氧化硫溶于60g水中,所得溶液的溶质质量分数为
- 4如图,在△ABC中,AB=AC,∠A=36°,BD平分∠ABC交AC于点D,若AC=2,求AD的长.
- 5在△ABC和△A'B'C'中,AB/A'B'=BC/B'C'=CA/C'A'=5/4,△ABC的周长为24,求△A'B'C'的周长.
- 6简便运算:666652×1/2×88 880×33334×3/4
- 7形容数量很少的成语
- 8稀释浓硫酸时,要把浓硫酸缓缓注入水中,用玻璃棒不断搅拌,目的是什么?
- 9It has passed 10 years since we met last time.
- 10谁知道一罐煤气相当于多少立方沼气