问题
选择题
— ____________ is the phone?
— It's on the desk. [ ]
A. Who
B. Where
C. What
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— ____________ is the phone?
— It's on the desk. [ ]
A. Who
B. Where
C. What
答案：B
B，电流强度I=
