In reality， though， the unity and coherence of ideas among sentences is what constitutes a paragraph.A paragraph is defined as “a group of sentences or a single sentence that forms a unit” .。

In reality， though， the unity and coherence of ideas among sentences is what constitutes a paragraph.A paragraph is defined as “a group of sentences or a single sentence that forms a unit” .。
A.正确
B.错误
正确答案：正确