肾脏排出的铵盐直接来源于()
A
暂无解析
Lance:Marydoesn'tlookwell.
Lee:______.
Let'sgoswimming,_______?
Idon’tunderstand____believehim.
Hebuiltatelescope____hecouldstudytheskiesinhisfreetime.
Thecaris_____expensive_____hecan’tbuyit.