下列物质不属于非肌酐色原但除外的是（ ）
A．丙酮
B．果糖
C．丙酮酸
D．胆红素
E．乙酰乙酸
参考答案：D
—That must have been a long trip.
—Yeah, it________us a whole week to get there.
A．takes
B．has taken
C．took
D．was taking
A．mgtgθ
B．mgsinθ
C．μmg
D．μmg
mgtgθ
mgsinθ