计算：-八年级数学

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• After working for two years, Tim Martin was ___ as the top manager in charge of the company.A．ranked
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• 已知，则x等于（）A．4B．±2C．2D．±4-九年级数学
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• --- Tom, can you answer my question?--Er, I’m very sorry, Miss Evens． I___________ about something e
• 函数中自变量x的取值范围为▲．-九年级数学
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• 若实数x，y满足，则yx的值为（）A．B．3C．－D．－3-八年级数学
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• —What a large crowd!—They ______ in the cold wind for hours; the famous star will come today.A．waite