在护理该病人的过程中，护士检查胸腔闭式引流管是否通畅的方法是（）。

单项选择题Which of the following is presented as a guideline for effective informative speaking? ( ) A. use technical language to enhance your credibility B. avoid personal words such as “I,” “we,” “you,” and “our” C. relate the topic directly and personally to your audience D. use the simple words to state the idea

单项选择题经初步检查，确定该病人存在气胸，医生决定为其行胸腔闭式引流，部位宜选择（）。