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- 1people often buy each other mooncakes ()fruit and nuts.
- 2把7分之5的绳子平均分成5份,每份是7分之5的(),每份是()米.
- 3电阻两端电压由6V变化2V后,电流变化了0.2A.则电阻值是_.电阻变化的功率是_W或_W.
- 4It seems to me that I have had too much Chinese food?
- 5用四个数算24点
- 6lim分子是y分母是(ln1+y)=?(x趋于0)要过程
- 7电感器在电路中的并联与串联有什么作用?
- 899与147的最小公倍数是最大公因数的_倍.
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- 10sin(x+y)sin(x-y)=k,求cos^2x-cos^2y