Now that you are a college student, you should learn to be ____ of your parents' help.[ ]

A. independent            

B. religious        

C. humorous        

D. careful

妊娠代谢变化哪项是错误的()

A．蛋白质代谢为负氮平衡

B．糖代谢为胰岛素分泌增加

C．脂类代谢为血脂升高，β-脂蛋白较α-脂蛋白增多

D．铁为妊娠最后3个月需要量增加

E．钙及磷为妊娠后3个月需要量增加