【单选题】You are distracted because you have just remembered something important you have forgotten to say. You realize that people are looking at you, but you have no idea of what has just been said. Which of...
A.
I’d just like to add one more point that ….
B.
Sorry I forgot something important here, let me think for a while.
C.
Before we move to the next point, may I check your understanding of what I just said?
D.
Perhaps I didn’t make my points complete. There is another very important point I‘d like to illustrate.
【单选题】'Physicians who practice in a group reduce their own expenses and provide patients with a wider range of services.' in this sentence 'expenses' can be explained as ______.