问题
选择题
The result of the study indicated that it was the type of fat ____ made the difference. [ ]
A. that
B. what
C. who
D. as
答案
答案：A
搜题请搜索小程序“爱下问搜题”
The result of the study indicated that it was the type of fat ____ made the difference. [ ]
A. that
B. what
C. who
D. as
答案：A
8CO2+10H2O，R的化学式为 。