the plowback ration is: equal to one minus the retention ratio.
the plowback ration is: equal to one minus the retention ratio.
The ration of A260 to A280 can be used to evaluate the purity of extracted DNA.( )
The ration of A260 to A280 can be used to evaluate the purity of extracted DNA.( )
Loss and damage ration for motor are lower than any other modes. Is it correct?（）
Loss and damage ration for motor are lower than any other modes. Is it correct?（）
The train was half an hour behind ______ . A: allowance B: ration C: schedule D: budget
The train was half an hour behind ______ . A: allowance B: ration C: schedule D: budget
Maintain an ideal ration of protein to carbohydrates in each meal without calorie counting. A: Atkins diet B: Ornish diet C: The Zone D: Eat Right for Your Type E: Nutrisystem F: South Beach diet
Maintain an ideal ration of protein to carbohydrates in each meal without calorie counting. A: Atkins diet B: Ornish diet C: The Zone D: Eat Right for Your Type E: Nutrisystem F: South Beach diet
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