题目内容
(请给出正确答案)
[单选题]
【单选题】With the principle of ________ when writing emails, you have to use exact word and clear structure to avoid some unnecessary trouble caused by misunderstanding of the email.
A.clearness
B.conciseness
C.completeness
D.courtesy
提问人:网友cooper1919
发布时间:2022-01-07