下列陈述正确的是:
A.The most common errors found when proofreading are word / letter omissions or additions, transposed letters and misspelling.
B.Using only short, simple sentences is best for business messages.
C.A friendship letter must have supporting information.
出自:国家开放大学婚姻家庭法学

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
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