判断题
常年均衡供应鲜奶的奶牛场,成年母牛群中产奶牛和干奶牛也有一定的比例关系,通常全年保持65%左右处于产奶,35%左右处于干奶。
正确
错误
常年均衡供应鲜奶的奶牛场,成年母牛群中产奶牛和干奶牛也有一定的比例关系,通常全年保持65%左右处于产奶,35%左右处于干奶。
正确
错误
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单项选择题
A nephrologist is educating her patients who has chronic kidney failure secondary to diabetes about how to evaluate the degree of kidney failure progression.She tells her patient that glomerular filtration rate () can be estimated by measuring the levels of some substances. The clearance of which of the following substances is the most accurate estimate for GFR? ()
A nephrologist is educating her patients who has chronic kidney failure secondary to diabetes about how to evaluate the degree of kidney failure progression.She tells her patient that glomerular filtration rate () can be estimated by measuring the levels of some substances. The clearance of which of the following substances is the most accurate estimate for GFR? ()
A．Creatinine
B．Glucose
C．Inulin
D．Paraaminohippurate
(PAH)
E．Sodium