问题
选择题
When you have any questions hard to answer, you may ________ your notes.[ ]
A. turn on
B. come to
C. refer to
D. look up
答案
答案：C
搜题请搜索小程序“爱下问搜题”
When you have any questions hard to answer, you may ________ your notes.[ ]
A. turn on
B. come to
C. refer to
D. look up
答案：C