【单选题】You must produce 27 widgets. You can only produce 9 widgets per production run. Each production line setup costs $1000. Each widget consumes $10 worth of material and $5 worth of labor. What is the to...
【单选题】听力原文: Do you know of anyone who uses the truth to deceive? When someone tells you something that is true, but leaves out important information that should be included, he can give you a false picture....
【单选题】“Sorry” is the hardest word to say sometimes. _______ you know you’ve done something wrong, or something inappropriate, it takes courage to say sorry.