问题
单项选择题
We are enclosing a full set of copy documents ______this first consignment
A. referring
B. covering
C. regarding to
D. as for
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
We are enclosing a full set of copy documents ______this first consignment
A. referring
B. covering
C. regarding to
D. as for
参考答案：B