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- 1My goal is to provide ___ human rqce with ____life of high quality.
- 2There was no reason for him to feel so sorry and
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- 4In ,e,lg ,log这些符号之间有什么关系,我看了书看不懂
- 5常温下,分别将4块形状相同,质量均为7g的铁片同时放入下列4种溶液中,产生气体速率最大的是( ) A.150mL 2mol•L-1盐酸 B.150mL 2mol•L-1硫酸 C.500mL 3mol•L-1盐酸 D.500mL 18.4m
- 6一个体操表演队有360人,排成一个6层的空心正方形阵,那么最外层的有多少人?
- 7用英语帮我写动物的习性‘‘‘
- 8运用平方差公式计算(Y^2-5X^2)(5X^2+Y^2)
- 9what was wanted of him
- 10请设计简单实验证明人体呼出的气体中含有水蒸气和二氧化碳.