Does anybody know when the stethoscope was invented? Any guesses? 1816. 有人知道听诊器是什么时候发明的吗？大家试着猜一猜，有人说是1816年。 And what I can say is, in 2016, doctors aren't going to be walking around with stethoscopes.
I made a decision. Now I was going to see that decision through 我下的决定就一定要贯彻 Now, that sounds all good. I'm talking to myself 这听起来很好 我跟自己讲 Oh, that sounds good. But it's 26.2 miles ahead of me
Mr. President, Prince Philip and I are delighted to welcome you and Senora Clemencia Rodriguez de Santos to Buckingham Palace. It has been five years since we first met, during your last official visi
April 24, 2007 11:13 A.M. EDT THE PRESIDENT: Good morning. Seventy-eight days ago I sent Congress a request for emergency war funding that our troops urgently need. I made it clear to Democratic leade
