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- 1已知向量a=(cosa,sina),向量b=(cosβ,sinβ)(0
- 2You have the freedom to do what you want todo.改为其同义句You____ ____ ____do what you want to do.
- 3Using the definitions of O and ,show that 6n2 + 10 n O (n3) but 6n2 + 10 n (n3)
- 4It is (snowy) 还是it is (snowing).Let's go and make a snowman
- 5为什么log4 3会等于log2根号3
- 6原来一堆煤每天烧25吨,可以烧80天,实行技术改造后,每天比原来节约百分之20,这堆煤可以烧多少天?
- 7两个底面积相等的圆柱,第一个圆柱与第二个圆柱高的比是7:11,第二个圆柱体积是132立方分米,第一个圆柱的
- 8"Where do you live?"和’What is you address?"之间的不同?
- 9指出下列句子中加括号词的词类活用现象
- 10用无什么无什么组词