It is generally considered unwise to give a child        he or she wants.   [ ]

A. however        

B. whatever        

C. whichever      

D. whenever

肾小球滤液与血浆的区别是()

A．尿素的含量

B．葡萄糖含量

C．氨基酸含量

D．蛋白质的含量

E．电解质的含量