问题
选择题
— Are you still busy?
— Yes, I _____ my work, and it won't take long. [ ]
A. just finish
B. am just finishing
C. have just finished
D. am just going to
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— Are you still busy?
— Yes, I _____ my work, and it won't take long. [ ]
A. just finish
B. am just finishing
C. have just finished
D. am just going to
答案：B
Al2O3+2Fe， 除去反应后混合物中剩余的铝粉与生成的Al2O3所用的试剂是 ，写出铝粉与所用试剂反应的离子方程式 。