问题
选择题
— Why does she always ask you for help?
— There is no one else _______, is there? [ ]
A. who to turn
B. she can turn to
C. for whom to turn
D. for her to turn
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— Why does she always ask you for help?
— There is no one else _______, is there? [ ]
A. who to turn
B. she can turn to
C. for whom to turn
D. for her to turn
答案：B
Na2CO3+H2O+CO2↑ ②NH4HCO3