• 2021-04-14
    2.Paparazzi are believable because digging the truth is their sole pursuit. [T/F]
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      在交流电路中,频率f/和周期T的关系式是()。 A: T=2πf; B: T=2π/ωt; C: T=f; D: T=1/f。

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      That building is _____ because all the others like it were destroyed. A: only B: sole C: unique D: one

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      The girl couldn't but ______ (tell) the truth .

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      Fill in the blankFor the expressionf(t)=tε(t)+2ε(t−2)−tε(t−2),f(3)=______ .

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      下列关系式不成立的是() A: ω=2πf B: ω=2π/T C: ω=2πT D: T=1/f